Preparation Of Porous Materials Research Articles

Preparation and size control of epoxy resin multilevel structures with SiO2 particles

In the process of preparing porous epoxy materials using reaction-induced phase separation (RIPS), the introduction of an appropriate amount of SiO2 particles enables the control of the phase separation behavior of the system and its ultimate phase structure. This study examined the role of SiO2 particles in the preparation and size control of epoxy resin multilevel structures by analyzing the phase separation and reaction kinetics in an epoxy resin blend system and characterizing the ultimate phase structure. It was found that fumed SiO2 particles (0–3 wt%) added to the DGEBA/DDCM/PEG200 blends resulted in significant interfacial stabilization, delaying phase separation. With an increase in the fumed SiO2 particle content, the phase structure stopped evolving at an earlier stage of phase separation. In addition, the fumed SiO2 particles dispersed in the porogen-enriched phase helped to stabilize the system, i.e., preventing or slowing down the segregation and aggregation of the components in the system, which may inhibit secondary phase separation in the porogen-enriched phase. When 350 nm SiO2 particles were used, an increase in the particle size resulted in a larger phase structure. The SiO2 particles were dispersed within the pore-forming agent phase, increasing the proportion of the pore-forming agent and exerting an occupancy effect, which diminished with decreasing SiO2 particle size and increasing hydrophobicity. Notably, the surface of the epoxy porous material skeleton was decorated with small pits formed by the acid etching of the SiO2 particles, and this multilevel structure contributed to the specific surface area. The multilevel structure can be precisely controlled by adjusting the size, content, and wettability of the SiO2 particles. The results of this study are universal and instructive for the preparation of porous materials using a phase separation method in combination with solid particles.

Fabrication of porous materials using quinoa husk and attapulgite co-stabilized foam templates for dye adsorption and post-treatment of soil remediation

Water-based foam has great potential in the preparation of porous materials, but there is still a lack of green and simple preparation methods. In this study, a stable water-based foam that co-stabilized with saponin leached from agricultural waste quinoa husk (QH) and nano-clay attapulgite (APT). The thickening effect and interface stability of modified APT played a crucial role in the formation and stabilization of Pickering foam. The free radical polymerization occurred in the continuous phase without affecting the foam stability, and the obtained pore-rich adsorbent displayed high-performance adsorption for methylene blue (MB) and methyl violet (MV), with the adsorption capacities reaching up to 291.95 mg/g and 430.01 mg/g, respectively. In keeping with the idea of sustainable development, the spent adsorbent was pyrolyzed and converted into mineral biochar. The pot experiments showed that the mineral biochar could improve the soil properties and promoted the plant growth. This work provided a new approach to the production of green and stable Pickering foam and also an alternative to realize the sustainable high value utilization of waste QH.

Preparation of porous materials by ultrasound-intensified acid leaching of high-carbon component in coal gasification fine slag

Coal gasification fine slag is one of the by-products from clean and efficient utilization of coal, and its resource utilization is extremely urgent. In this work, a high carbon fraction with a fixed carbon content higher than 60% was obtained by simple sieving of gasification fine slag, from which a porous material was prepared by ultrasonic acid leaching method. The adsorption performance of porous materials, being used as treatment of radioactive iodine in nuclear wastewater, is characterized by iodine adsorption value. The effects of ultrasound time, ultrasound power, acid concentration, and temperature on the iodine adsorption performance and compositional structure of the porous materials were systematically investigated by combining the results of SEM, BET, XRD, and FT-IR. The mechanisms of ultrasound-enhanced acid leaching on compositional structure of residual carbon and migration and transformation laws of the ash constituents were explored and summarized. The results show that the porous material prepared under conditions of acid concentration of 4 mol/L, acid immersion temperature of 50 °C, ultrasonic power of 210 W, and ultrasonic time of 1.5 h has the best iodine adsorption performance of 468.53 mg/g, with a specific surface area of 474.97 m2/g, and possesses a rich pore structure with predominant mesopores. The order of each factor on the iodine adsorption performance is: sonication time > acid concentration > sonication power > acid immersion temperature. The mechanism of ultrasonic enhanced acid leaching is that ultrasonic cavitation and mechanical wave action firstly enhance dissociation of carbon-ash adherent particles, thus making desorption of ash particles blocked in pore channels of the gasification slag to increase its connectivity; secondly, lead to generation of cracks on surface of the carbon and ash particles to enhance accessibility of inorganic components inside the carbon particles; and thirdly, enhance the acid leaching process by increasing mass transfer rate to strengthen leaching effect of inorganic components in the gasification slag.

High‐Performance Mesoporous Catalysts of Ultrasmall Hexagonal Thiospinel Nanocrystals for Visible‐Light Hydrogen Evolution

AbstractSemiconductor nanocrystals are at the frontier of energy conversion research owing to their tunable optoelectronic attributes and versatile surface activities. Here high‐surface‐area mesoporous frameworks comprising linked CdIn2S4 nanocrystals as efficient catalysts are presented for visible‐light‐driven hydrogen production. X‐ray total scattering analysis discloses hexagonally‐structured CdIn2S4 thiospinel nanoparticles forming the porous structure. Further analytic results indicate that these newly‐made ensembles possess an open‐up architecture that is highly conductive and susceptible to modification. Through appropriate selection of the synthesis conditions, it is demonstrated that the present synthetic protocol is general, allowing the preparation of porous materials from thiospinel nanoparticles with various sizes and compositions. This study shows that coupling of CdIn2S4 mesostructures and Ni2P nanosheets substantially expedites the kinetics of water photo‐splitting by effectively reinforcing the separation of photogenerated carriers at the interfaces. Thus, mesoporous Ni2P/CdIn2S4 heterojunctions instigate a remarkable improvement in the hydrogen generation rate (≈29.3 mmol h−1 gcat−1), presenting an apparent quantum yield of 61.7% at 420 nm monochromatic light. A combination of electrochemical and spectroscopic studies unveils a pertinent mechanistic link between the charge‐transfer dynamics and intrinsic photochemical activity in these nanostructures.

Reduction of mesoporous poly(ether ether ketone) materials, preserving pore size

AbstractPoly(ether ether ketone) (PEEK) is an important high‐performance engineering polymer that is used extensively in numerous engineering applications that require chemical, solvent and thermal resistance. These attributes make PEEK attractive for the preparation of porous materials and membranes. Chemical modifications of preformed porous PEEK materials can expand the utilization of PEEK in a range of applications. It is desirable to carry out chemical functionalization without affecting the preformed porous structure or the degree of polymer crystallinity responsible for the sought‐after properties. We report here on the heterogeneous functionalization of preformed mesoporous PEEK materials with hydroxyl groups using sodium borohydride as a reducing agent in a poly(ethylene glycol)/tetrahydrofuran solvent mixture. The pore structure of functionalized materials was characterized, and the degree of modification with functional groups was measured as a function of reaction protocol. The methodology was applied to the preparation of porous PEEK materials in the form of beads and hollow fibers that differed in semicrystalline morphology and pore structure. The degree of surface modification by –OH groups in reduced PEEK (PEEK‐OH) porous materials was determined quantitatively by measuring the carbocation adduct concentration formed upon the dissolution of PEEK‐OH in sulfuric acid using UV–visible spectroscopy. Bis(4‐(4‐methoxyphenoxy)phenyl)methanone was used to optimize the reaction condition protocol. The degree of crystallinity and pore structure of the functionalized articles were largely preserved following modification. © 2024 Society of Industrial Chemistry.

Use of murici (Byrsonima crassifolia) and jabuticaba (Plinia cauliflora) residues in the preparation of porous materials: Effect of pH on the adsorption efficiency of the contaminants phenol, diethylphthalate and amoxicillin

Activated charcoals with the chemical activator (H3PO4) were synthesized from agro-industrial residues, Murici seeds (CA-MU) and Jabuticaba (CA-JA). The synthesized charcoals were characterized by thermogravimetric analysis (TG), N2 adsorption and desorption isotherms, Fourier transform infrared spectroscopy (FTIR), point of zero charge (pHPZC) and scanning electron microscopy (SEM). The charcoals produced presented mesoporous characteristics, surface areas of 884.226 m2.g−1 for CA-JA and 556.97 m2.g−1 for CA-MU, mean pore diameters suitable for adsorption of phenol (PHE), diethylphthalate (DEP) and amoxicillin (AMX). The chemical characterization indicated the acid profile of the surface of the charcoals, which presented pHPZC of 6.3 (CA-JA) and 6.7 (CA-MU). The adsorption studies, in aqueous solution of the pollutants (PHE), (DEP) and (AMX), indicated that the removal capacity is strongly influenced by the pH of the solution. Toxicity tests demonstrated that the adsorption process was responsible for decreasing the toxicity of the pollutants studied. Thus, given the results presented, the activated charcoals synthesized can be considered high potential adsorbents for applications in the removal of organic pollutants in aqueous solutions.

Three-dimensional numerical simulation of Ostwald ripening characteristics of bubbles in porous medium

Ostwald ripening behaviors of bubbles in porous medium are observed commonly in various fields, including CO<sub>2</sub> geological storage, preparation of porous materials, and fuel cells. A three-dimensional pore network model based on concentration coupling calculation has been developed to investigate the ripening characteristics of bubbles in porous medium on a pore scale. This model takes into account the shape of bubble, the structure of porous medium, and mass transfer between gas and liquid. By solving the gas phase concentration of each pore body in the three-dimensional pore network, the model can track the evolution process of each bubble. A microfluidic chip with a four-pore structure is used to validate the reliability of the model through visual experiments. To analyze the effect of porous medium heterogeneity on the bubble ripening process, two different three-dimensional pore network structures with varying pore sizes are constructed and the ripening processes of bubbles in two regions are simulated numerically. The results show that the initial distribution of bubbles can affect the ripening process of porous medium. When bubbles are uniformly distributed, in the ripening process, they exhibit regular and systematic changes in their spacing. However, in the case of uneven bubble distribution, as the bubbles transfer from smaller pore region to larger pore region, they also undergo individual mass transfer towards the larger bubble region in their respective areas. Consequently, the remaining bubbles no longer maintain a spaced distribution pattern. Additionally, the differences in initial size among bubbles can accelerate the ripening process, resulting in a significantly shorter ripening time than that in a uniform distribution. The choice of pore number has a significant influence on continuous-scale equivalent parameters, such as average capillary pressure and saturation. As the number of pores increases, the capillary pressure and saturation exhibit a more regular, nonlinear variation. A relationship between capillary pressure and saturation in the small pore region and in the large pore region are established, which deviate from the assumptions made in the existing literature. This result provides important guidance for constructing the continuous-scale ripening model that can be used to predict the evolution process of CO<sub>2</sub> during geological storage and provide guidance for studying the influence mechanism of heterogeneity during long-term CO<sub>2</sub> storage.

Beyond traditional synthesis of zeolites: The impact of germanosilicate chemistry in the search for new materials

Zeolites are one of the key materials in the chemical industry with their applications ranging from water purification to gas separation or oil refining. In the recent years, the research of zeolites focuses more and more on specialised applications including fine chemical synthesis or separation of small organic compounds, which increase the demand for new types of zeolites with unique structural and chemical properties. Introduction of tailored organic structure-directing agents and especially the introduction of germanium stimulated the discovery of new zeolite frameworks and particularly led to a discovery of numerous new extra-large pore zeolites with attractive properties for selective catalysis. However, the germanosilicate chemistry also opened up an unparalleled opportunity for tailoring even more new zeolites and zeolite-derived materials by controlled post-synthetic transformation of the germanosilicates into layered zeolites or to new zeolite frameworks by solid-, liquid- or vapour-phase transformations such as the Assembly-Disassembly-Organisation-Reassembly process. The following research provided new strategies for preparation of porous materials with characteristics and properties tailored on-demand.

Utilization of coal gangue for preparing high‐silica porous materials with excellent ad/desorption performance on VOCs

AbstractBACKGROUNDCoal gangue causes a series of environmental problems due to its low utilization rate and high amount of hoarding. However, the preparation of porous materials with coal gangue is an effective method of resource utilization. Mesoporous silica and meso‐microporous ZSM‐5 were prepared with alkali melting activation‐acid leaching and hydrothermal synthesis, respectively. The orthogonal experiment was used to explore the optimal preparation conditions for mesoporous silica. Meso‐microporous ZSM‐5 were characterized with instruments. The adsorption and desorption performance of the porous material was explored by dynamic adsorption/desorption on volatile organic compounds (VOCs).RESULTSThe optimal preparation conditions for mesoporous silica are a roasting temperature of 800 °C, mass ratio of coal gangue to sodium carbonate of 1:0.6, and sulfuric acid leaching of 4 mol L−1. The characterization results show that the molecular sieve has a superior specific surface and a certain amount of mesoporous pores due to the addition of the appropriate mesoporous template. The results of toluene dynamic adsorption experiments show that the meso‐microporous ZSM‐5 (ZSM‐5‐0.025PAC) has excellent adsorption and desorption performance (the adsorption capacity is up to 47.02 mg g−1), water resistance (the adsorption capacity decreased only 4.64%), and renewability (the adsorption and desorption efficiency is up to 95% and 97%).CONCLUSIONThe porous materials prepared presented excellent VOCs ad/desorption performance, which has good industrial application prospects. The research provides a novel approach for the utilization of coal gangue. © 2022 Society of Chemical Industry (SCI).

Fabrication porous adsorbents templated from aqueous foams using astragalus membranaceus and attapulgite as stabilizer for efficient removal of cationic dyes

The water-based foam stabilized by the natural surfactant applied in the fabrication of porous materials has attracted extensive attention, as the advantages of cleanness, convenience and low cost. Particularly, the development of a green preparation method has became the main research focus and frontier. In this work, a green liquid foam with high stability was prepared by synergistic stabilization of natural plant astragalus membranaceus (AMS) and attapulgite (APT), and then a novel porous material with sufficient hierarchical pore structure was templated from the foam via a simple free radical polymerization of acrylamide (AM). The characterization results revealed that the amphiphilic molecules from AMS adsorbed onto the water-air interface and formed a protective shell to prevent the bubble breakup, and APT gathered in the plateau border and formed a three-dimensional network structure, which greatly slowed down the drainage rate. The porous material polyacrylamide/astragalus membranaceus/attapulgite (PAM/AMS/APT) showed the excellent adsorption performance for cationic dyes of Methyl Violet (MV) and Methylene Blue (MB) in water, and the maximum adsorption capacity could reach to 709.13 and 703.30 mg/g, respectively. Furthermore, the polymer material enabled to regenerate and cycle via a convenient calcination process, and the adsorption capacity was still higher than 200 mg/g after five cycles. In short, this research provided a new idea for the green preparation of porous materials and the treatment of water pollution.

Porous materials fabricated from Pickering foams stabilized by natural plant of Angelica sinensis for removal of Cd (II) and Cu (II)

The emulsion or foam templating applied in the preparation of porous materials have been widely studied. As the enhancement of the green and environmental protection awareness in preparation process, the stabilization of the emulsion or foam with the natural matter has been attracted extensive attention. In this work, a high stable Pickering water-based foams was stabilized by the natural plant Angelica sinensis, and a novel porous material of Polyacrylic acid-Angelica sinensis (PAA-AS) was fabricated from the Pickering foam via a thermally-initiated polymerization. Duo to the amphiphilic organic molecules was rich in AS, such as phenolic acids, saponins, etc., the water-based foam can be stabilized by the AS particles alone. The as-prepared porous materials had sufficient pore structure, and the pore size could be controlled by changing the dosage of AS. PAA-AS was applied to remove heavy metal ions from water, and the adsorption capacities for Cd2+ and Cu2+ could be reached to 372.74 mg/g and 186.83 mg/g, respectively. In brief, this research provided a new approach to prepare environmentally friendly porous materials, and the materials has the applications potential in water treatment.

Performance and retention mechanisms of corn silk to atmospheric heavy metal lead

Atmospheric heavy metals are seriously harmful, and porous materials have unique advantages in the control of air pollutants. However, the direct use of plant porous materials to purify atmospheric heavy metals are rare. So agricultural waste corn silk with porous structures was selected to analyze the retention capability and mechanism to the atmospheric lead. The results show that the corn silk can effectively retain atmospheric lead in natural growing state or fixed experimental conditions. The analysis of a total of 765 corn silk samples from 17 different regions in Shandong province, China, shows that atmospheric lead is the main source of lead in the corn silk, and corn silk can be used for biological monitoring of atmospheric lead to some extent. Based on the analysis with different techniques including scanning electron microscope (SEM), energy spectrum dispersive X-ray spectrometer (EDS), Fourier infrared spectrometer (FTIR) and Zeta potential, the effective retention of lead by corn silk is due to a variety of mechanisms, including physical adsorption, electrostatic adsorption, complexation, chelation and ion exchange. So agricultural waste corn silk has great potential in the application of biosorption or preparation of porous materials in purification of atmospheric heavy metals.

Micro/nano bubbles as templates in the preparation of porous materials

<p indent="0mm">Recent studies have found that tiny-sized bubbles generated in the liquid phase and at the solid-liquid interface not only have extraordinary high stability, but also have unique physicochemical properties. The application prospects of micro/nano bubbles in the fields of biomedicine, environmental pollution control, and functional material preparation have been gradually revealed. In this paper, the definition, classification and basic properties of micro/nano bubbles were introduced, and the research progress and understanding of our group in the control generation, stability mechanism and application of bulk micro/nano bubbles were briefly described. The template effect of micro/nano bubbles in the preparation of functional porous materials was introduced emphatically, and an outlook on their future development was provided.

Conversion of Organically Directed Selenidostannate into Porous SnO2 Exhibiting Effective Electrochemical Reduction of CO2 to C1 Products

Development of porous catalysts for electrochemical reduction of CO₂ relies on methodological innovation in regard to both rational structure design and feasible preparation. Organically directed selenidometalates emerge as a type of promising crystalline precursors for their homogeneously distributed templates that can undergo precise thermolysis and volatilization. Herein, we report the facile thermally driven conversion of choline-templated selenidostannate, [(CH₃)₃N(CH₂)₂OH]₂[Sn₃Se₇]·H₂O (Ch-Sn₃Se₇), into a series of mesoporous SnO₂ (P-SnO₂) materials as high-performance electrocatalysts for CO₂ reduction. Variations of particle morphology/size and surface area with calcination time were systematically investigated and correlated to the electrocatalytic activity and product selectivity. The optimal electrode loaded with P-SnO₂-0 min exhibits a high faradic efficiency (up to 94.5%), a large partial current density (∼11.5 mA cm–²), and excellent long-term stability (100 h) for transforming CO₂ into useful C₁ products (HCOOH + CO) at −1.06 V vs reversible hydrogen electrode (RHE), comparable to the top-level Sn-based catalysts. A detailed investigation into the long-term electrolysis revealed a gradual fragmentation of the pristine SnO₂ nanoparticles along with partial SnO₂–SnO–Sn self-reduction, which contributes to increased active sites that account for the highly selective and stable electrolysis process. This work provides a facile and low-cost templating method for the preparation of porous materials and gives some deeper insights into the course of the catalytic reaction that are of considerable industrial significance.

One-pot fabrication of hydrophilic-oleophobic cellulose nanofiber-silane composite aerogels for selectively absorbing water from oil–water mixtures

While cellulose nanofiber is advantageous for the preparation of porous materials with selective absorption, cellulose-based, hydrophilic-oleophobic aerogels are only prepared through complicated surface-modification. Herein, we report a facile one-pot fabrication of hydrophilic-oleophobic composite aerogels firstly through polycondensation of cellulose nanofiber and three silane coupling agents. The hydrophilic-oleophobic aerogels exhibited interconnected macroporous structures, robust compressive property (without failure at a high strain of 80%), excellent water resistance (without failure even at 100 °C, pH = 1 or pH = 12), the ability to selectively absorb water from oil–water mixtures, and excellent reusability (without significant decrease in hexadecane contact angle and absorption capacity after five absorption–regeneration cycles). The facile one-pot polycondensation and unique hydrophilicity-oleophobicity enabled the aerogels to be practical for removing water from oil–water mixtures.

Generalized Parameters of Porous Materials as Similarity Numbers

In the multifactorial preparation of porous materials, the simultaneous/se- quential influence of a number of technological variables changes the individual parameters of the texture of the material (surface area, volume, pore size, etc.) to different values and with increase or decrease. Generalized parameters (GPs) combine these changes; new dependencies arise. GPs behave like the dimensionless similarity numbers known in science and technology (Reynolds, etc.). They split the data (phenomena) into series with similar properties, reveal special patterns and structural nuances. New GPs proposed. The average pore size is presented as the product of two GPs: the dimentionless shape factor F and pore width of unknown shape (reciprocal of the volumetric surface). Using F, for example, the SBA-15 dataset (D. Zhao, Science 1998) was split into 3 series of samples differing in synthesis temperatures, unit cell parameters, intra-wall pore volumes, pore lengths, and the ratios of wall thickness to pore size. A surprising phenomenon was discovered one of the copolymers acts in a similar way to high temperatures. The standard deviation (STD, %) of the texture parameter in the series is its serial GP. The surface topography (micropore volume per m2) is proposed; it eliminates fluctuation in material density and has a lower STD than cm3/g. Examples of the use of GPs for silica, carbon, alumina and catalysts are given. A correlation has been shown between the efficiency of some catalytic reactions (adsorption) and GPs. GPs provide new information about materials and open up new research challenges.

Preparation of Porous Materials Derived from Waste Mussel Shell with High Removal Performance for Tableware Oil

In this work, carbonized mussel shell powder (CMSP) was modified by alkyl polyglucosides (APG) and rhamnolipid (RL) to render porous biomass a lipophilic surface, which was innovatively utilized as an environmentally friendly tableware cleaning material. The modified method was two-step hydrotherm-assisted synthesis. A contact angle meter was used to determine the surface hydrophobic property of modified samples (MTAR). The pore and the surface structure of CMSP and MTAR were characterized by BET, SEM, XRD, FTIR and XPS. The effect of removing oil was tested by gravimetric method. The results showed that the surface of MTAR was more porous and fluffier than CMSP, and the specific surface area is increased by 16.76 times. The results showed that when calcining CMSP at 1000C, the oil removal rate of the synthesized MTAR is the best, and the decontamination rate can reach 87.05%. This research aims to develop a green and environmentally-friendly tableware cleaning material, solve environmental problems, and make full use of waste, which is very conducive to environmental protection.

Removal of hazardous crystal violet dye by low-cost P-type zeolite/carbon composite obtained from in situ conversion of coal gasification fine slag

As the bulk of solid waste from coal chemical industry, coal gasification fine slag (CGFS) mainly consists of aluminosilicates and residual carbon. Currently, the common transformation strategy for CGFS entails the preparation of porous materials. However, this method utilizes only a part of the effective components in the slag. Specifically, either the silicon is used to synthesize zeolites, or the porous carbon is obtained through intensified separation. Therefore, it is highly desirable to achieve the simultaneous utilization of silicon and carbon resources in CGFS. In this work, CGFS was used as a low-cost raw material to prepare the P-zeolite/carbon composite in situ. The composite was characterized via XRD, 27 Al and 29 Si NMR, SEM, FT-IR, and Raman technique. Furthermore, the adsorption removal of crystal violet onto the composite was studied. The adsorption capacity was as high as 625.00 mg g −1 , which was much larger than the CGFS and most reported adsorbents. • The P-type zeolite/carbon composite was prepared in situ from CGFS. • The composite had flower-shape P-type zeolite and porous lamellar carbon. • The composite had large specific surface area and abundant functional groups. • The adsorption amount of crystal violet onto the composite was up to 625 mg g −1 .

Preparation of porous starch by α-amylase-catalyzed hydrolysis under a moderate electric field

Enzymatically-catalytic conversion of starch-based industrial waste into porous materials was enhanced by a moderate electric field (MEF). Changes in the hydrolysis rate, α-amylase activity and starch structure during MEF treatment (0–20 V, 0–400 Hz, room temperature and 0–2 h) were monitored and the hydrolyzed products were characterized by scanning electron microscopy, X-ray diffraction and water/oil adsorption analyses. The results showed that MEF enhanced enzymatic hydrolysis mainly by destroying starch structure, rather than by altering α-amylase activity. The average number of pores of hydrolyzed starch increased when voltage increased from 2 to 15 V, but a further increase of voltage caused the gelatinization of starch, thus making it unfavorable for the preparation of porous materials. The crystallinity of electrically-treated porous starches was decreased by 2.87–5.06%. The water and oil adsorption capacity of the porous starches was much higher than that of their native counterpart. Overall, this study extends the applications of electric field-based techniques in an enzymatic modification of biomaterials.

Preparation of porous materials by selective enzymatic degradation: effect of in vitro degradation and in vivo compatibility

Poly(butylene succinate) (PBS) and poly(lactic acid) (PLA) were melt-blended and formed into a film by hot press forming. The film was selectively degraded by cutinase and proteinase K to form a porous material. The porous materials were characterized with respect to their pore morphology, pore size, porosity and hydrophilicity. The porous materials were investigated in vitro degradation and in vivo compatibility. The results show that the pore size of the prepared porous materials could be controlled by the proportion of PBS and the degradation time. When the PBS composition of PBS/PLA blends was changed from 40 wt% to 50 wt%, the mean pore diameter of the porous materials significantly increased from 6.91 µm to 120 µm, the porosity improved from 81.52% to 96.90%, and the contact angle decreased from 81.08° to 46.56°. In vitro degradation suggests that the PBS-based porous materials have a good corrosion resistance but the PLA-based porous materials have degradability in simulated body fluid. Subcutaneous implantation of the porous materials did not cause intense inflammatory response, which revealed good compatibility. The results of hematoxylin and eosin and Masson's trichrome staining assays demonstrated that the porous materials promote chondrocyte production. Porous materials have great potential in preparing implants for tissue engineering applications.