Carbon Composite Materials Research Articles

Emerging Biomedical Applications of Carbon Dot and Polymer Composite Materials

Carbon dot-based composite materials have been extensively developed for versatile biomedical applications, such as drug delivery, tissue engineering, bioimaging, biosensors, and photothermal cancer therapy, owing to their excellent mechanical properties, electrical and thermal conductivity, large surface-to-volume ratio, and biocompatibility. For instance, the hydrophobicity and delocalized π-electrons of carbon dots enable insoluble drug loading in carbon composite-based drug delivery carriers. In addition, carbon dot-based materials are suitable for optical and electrochemical biosensor applications owing to their intrinsic properties. Thus, this review briefly focuses on the following: (1) general aspects, (2) various sources, and (3) versatile biomedical applications of carbon dots and composite materials. More importantly, we present the emerging applications of carbon dot-based materials, such as in agricultural systems, COVID-19 theranostics, counterfeit, and security.

Fabrication of Porous Carbon-Composite Nanofibers Via Electrospinning and Their Application in Ion Storage System

Nanoporous materials have attracted considerable attention for various potential applications in sensors, optical, magnetic and electronic devices due to their high specific surface area and distinctive physicochemical properties. Particularly, porous carbon-composite materials can be used in the field of catalysis, separation, purification, capture and energy storage/conversion systems. In this work, we prepared highly porous carbon-composite nanofibers with hollow-structures by electrospinning combined with hundreds of nanometers sized silica nanoparticles and 2D MXene flakes and demonstrated the applications in ion storage systems. Firstly, nanoparticles and MXene flakes embedded-polyacrylonitrile(PAN) was electrospun with single and dual nozzles, respectively. In the case of electrospinning via dual nozzle , PAN/Mxene solution and polymethyl methacrylate (PMMA) solution were used as shell and core materials, respectively. After the electrospinning process, the nanofibers were stabilized at 280oC, followed by a carbonization at 800oC for 1h. Selective removal of silica nanoparticles by HF solution after the carbonization and the decomposition of PMMA at 400oC resulted in the well defined hollow-structured carbon-composite nanofibers. The morphologies of the nanofibers depends on the concentration and size of silica nanoparticles and Mxene flakes and the each specific surface area was higher about 6 and 7 times than those of normal carbon nanofibers. Particularly, the carbonization of MXene-embedded nanofibers successfully removed the functional groups on the MXene such as –F and –OH which are known to hinder Li-ion transport. The hollow structured carbon composite nanofibers with tailored surface terminations and the increased specific surface area were utilized as a electrode materials of ion storage systems and showed improved electrochemical performance compared to normal carbon nanofibers or carbon-MXene composite paste. Figure 1

Preparation of Powdered Activated Carbon Composite Material and Its Adsorption Performance and Mechanisms for Removing RhB

For solving the problem of low efficiency about dyes and slow precipitation rate for powdered activated carbon (PAC), this study successfully prepares a kind of powdered activated carbon-based composites (PACMC) to remove Rhodamine B (RhB) in wastewater as an adsorbent. PACMC derived from potassium humate and polyaluminium chloride (PACl)-modified PAC were fabricated via a chemical precipitation method. We confirmed the micro-morphology and chemical composition of PACMC by scanning electron microscopy energy-dispersive X-ray spectrometer (SEM-EDS) and fourier infrared spectroscopy (FT-IR), certifying that PACMC was synthesized by chemical reaction of raw materials. PACMC has layered porous structure and functional groups, which is beneficial to the transport and diffusion of RhB molecules. The specific surface area (10.098 m2·g−1) and average particle size (142.9 µm) of PACMC and the specific surface area (710.1 m2·g−1) and average particle size (11.9 µm) of PAC were measured. By comparison, it can be seen that PACMC has larger average particle size conducive to solid–liquid separation. The static adsorption experiments were carried out to investigate the adsorption properties of RhB by PACMC. The results showed that the adsorption capacity of PACMC for RhB was 2–3 times as high as that of PAC. The pH value of the solution had a significant effect on the adsorption of RhB by PACMC and the maximum adsorption was observed at pH = 4.5 (qe = 28.56 mg·g−1, C0 = 40 mg·L−1). The adsorption of RhB by PACMC can be well described by the pseudo-second-order kinetics. The kinetic results revealed that the adsorption process involved several steps, where the chemical adsorption and intra-particle diffusion both played the important roles. The isothermal adsorption data were in accordance with the Dubinin–Radushkevich model, which indicated that the adsorption was dominated by the chemisorption mechanism. Therefore, the adsorption mechanisms included chemical binding/chelation effect and electrostatic adsorption effect.

Application of a remotely bonded fiber-optic Bragg grating sensor to acoustic emission testing for a carbon-carbon composite at a temperature of 1000 °C

This research established an acoustic emission (AE) testing method applicable at high temperatures using a fiber Bragg grating (FBG) sensor. The method was employed to inspect the process of flexural failure of a heat-resistant carbon–carbon (CC) composite material during a three-point bending test conducted at a temperature as high as 1000 °C. This paper reported the AE testing results. Also, the AE signals with different waveform features were classified by a clustering analysis based on machine learning. Those different AE signal clusters were further associated with different damages, such as matrix crack, inter-ply delamination, and breakage of the fiber bundles. The relation between the damage mechanism and the material failure was then investigated based on the classified AE testing results. The investigation clarified that the progressive behavior of those damages depended on the extent of the material oxidation at elevated temperatures. The analysis agreed with the microscopic cross-section observation. Hence, this article demonstrated that the FBG-based AE testing method was capable of reliable in-situ damage diagnosis under high-temperature environments.

Biological Studies of New Implant Materials Based on Carbon and Polymer Carriers with Film Heterostructures Containing Noble Metals.

This paper presents pioneering results on the evaluation of noble metal film hetero-structures to improve some functional characteristics of carbon-based implant materials: carbon-composite material (CCM) and carbon-fiber-reinforced polyetheretherketone (CFR-PEEK). Metal-organic chemical vapor deposition (MOCVD) was successfully applied to the deposition of Ir, Pt, and PtIr films on these carriers. A noble metal layer as thin as 1 µm provided clear X-ray imaging of 1–2.5 mm thick CFR-PEEK samples. The coated and pristine CCM and CFR-PEEK samples were further surface-modified with Au and Ag nanoparticles (NPs) through MOCVD and physical vapor deposition (PVD) processes, respectively. The composition and microstructural features, the NPs sizes, and surface concentrations were determined. In vitro biological studies included tests for cytotoxicity and antibacterial properties. A series of samples were selected for subcutaneous implantation in rats (up to 3 months) and histological studies. The bimetallic PtIr-based heterostructures showed no cytotoxicity in vitro, but were less biocompatible due to a dense two-layered fibrous capsule. AuNP heterostructures on CFR-PEEK promoted cell proliferation in vitro and exhibited a strong inhibition of bacterial growth (p < 0.05) and high in vitro biocompatibility, especially Au/Ir structures. AgNP heterostructures showed a more pronounced antibacterial effect, while their in vivo biocompatibility was better than that of the pristine CFR-PEEK, but worse than that of AuNP heterostructures.

Application of Co/Co9S8@N, S doped porous carbon composites prepared by ball milling for zinc-air battery

• Metal sulfides were prepared by a unique strategy to achieve sulfidation and double doping with ammonium bisulfate. • The amount of ammonium bisulfate has a great effect on the synthesis of Co/Co 9 S 8 @N, S-PC. • Co/Co 9 S 8 @N, S-PC-N exhibits a unique porous morphology and optimized structure and composition. • Co/Co 9 S 8 @N, S-PC-N possesses outstanding exhibits the performance of double-effect oxygen catalysis. With the advantage of high electrocatalytic activity, cobalt sulfides has become an efficient electrocatalyst for oxygen evolution and oxygen reduction reaction (OER/ORR). Selecting an appropriate strategy to construct a optimal structure for cobalt sulfides to explore the potential of their application in zinc-air battery is one of the meaningful topics. Here we propose a facile strategy to synthesize Co/Co 9 S 8 @N, S doped porous carbon composite material with mesoporous structure by ball milling. The Co/Co 9 S 8 @N, S doped porous carbon composite material exhibits excellent dual function catalytic activity for OER and ORR. Also, the material exhibits excellent power density and cycle stability when applied to the electrode catalytic material of normal zinc-air battery. Among them, the optimal sample present better power density than Pt-Ru-C mixed catalyst used in the normal zinc-air battery, and the limit value is 202.5 mW cm -2 . Connecting two solid-state zinc-air batteries in series can meet the normal operation of 53 LED light-emitting diodes. This work can provide a powerful reference for the further development of cobalt sulfides in oxygen electrocatalysis and zinc-air battery.

Synthesis of micro-nano sphere structure silicon–carbon composite as anode material for lithium-ion batteries

Here, a new micro-nano sphere structure of silicon–carbon composite anode materials is fabricated using spray drying and surface modification. Fulvic acid (FA) is used as the carbon source, which forms voids between nanoscale silicon–carbon particles. The results demonstrate by rate performance that particle voids can significantly enhance the lithium-ion transport rate. The Si@FA-2 material offered a high capacity of 917.28 mAh g−1 after 100 cycles at a current density of 0.1 A g−1. Thus, fabricating a micro-nano sphere structure using FA as the carbon source offers a helpful exploration of silicon-based anode materials.

High-performance different shape carbon decorated asteroidea-like cobalt diselenide electrode for energy storage device

Presently, the selenides-based transition metal appears to be one of the encouraging materials utilized in energy conservation, and storage applications. In this report, we presented the pure cobalt diselenide (CoSe2) and its composite with different shaped carbon using the one-step hydrothermal method. The CoSe2 with activated carbon composite exhibited the highest electrochemical performance among all prepared samples. It depicts retention of capacitance at around 80 % for 5000 cycles. A symmetric device prototype cell has been designed using a CoSe2/activated carbon composite electrode which displays the highest specific energy and power density as 83 Wh kg−1 at 1622 W kg−1. The maximum specific capacitance displayed by it is 886 F g−1 for a constant 10 mV s−1 Further, a possible charge storage mechanism related to the fabricated cell is proposed. The fabricated device application in practical life has been tested via a glowing panel containing 17 light-emitting diodes (LEDs) and its performance remains the same after six months too. The noteworthy improved capacity, good cycling stability, and high specific energy for the CoSe2 with activated carbon composite material is possibly considered a potential candidate for energy storage devices, and portable electronics.

Lignin-derived hierarchical porous flower-like carbon nanosheets decorated with biomass carbon quantum dots for efficient oxygen reduction

Excavating and developing efficient and economical non-metallic nanomaterial catalysts for oxygen reduction reactions (ORR), which are vital for fuel cells, but is still challenging. Here, we synthesize a nitrogen-doped hierarchical porous flower-like carbon nanosheets decorated with nitrogen-doped carbon quantum dots. The hierarchically porosity heteroatom-doped flower-like carbon nanosheets are first synthesized using MgO as hard template, KOH/NaOH as activator, lignin/urea as carbon/heteroatom source, and then lignin-based carbon quantum dots (CQDs) fabricated via microwave hydrothermal are compounded with carbon nanosheets after a one-step hydrothermal treatment. Benefitting from the interconnection of its 3D graphite shell network, abundant active sites, high specific surface area, and multi-scale pore structure, the n-HPFN@CQDs exhibits favorable ORR activity and stability in 0.1 mol KOH media. Compared with commercial Pt/C, the assembled Zn-air batteries using n-HPFN@CQDs as electrode catalysts exhibit comparable discharge performance. This work synthesized a novel and green biomass-based carbon composite materials achieving high-performance for energy conversion applications.

In-situ two-step electrodeposition of α-CD-rGO/Ni-MOF composite film for superior glucose sensing

Accurate and rapid determination of blood glucose levels is essential for real-time monitoring and management of diabetes mellitus, and nanomaterials-based nonenzymatic glucose sensing plays an increasingly significant role in this regard. Here, a simple two-step electrodeposition technique that was efficient, environmentally friendly, easily manipulated, and exceedingly controllable was adopted for the synthesis of metal-organic framework (MOF)/carbon material composites on a titanium mesh (TM), namely α-cyclodextrin functionalized reduced graphene oxide/nickel-based MOF (α-CD-rGO/Ni-MOF/TM), in which Ni-MOF served as the electrocatalyst for glucose oxidation, and rGO greatly enhanced the electrochemical performance of Ni-MOF, benefiting from α-CD effectively preventing aggregation of rGO nanosheets while also improving the stability of the composites, so that these endow the obtained nanomaterials exhibited remarkable electrocatalytic ability for glucose. Consequently, the as-prepared glucose sensor revealed two linear dynamic ranges of 0.65 μM− 4.828 mM with a sensitivity of 1395 μA mM−1 cm−2 and 4.828 − 9.178 mM with a sensitivity of 760 μA mM−1 cm−2 together with a rapid response time of only 1.9 s and a low detection limit of 0.3 μM as well as distinguished reproducibility, selectivity, and stability, further demonstrating the synergistic effects of this composite. The newly manufactured glucose sensing platform was also successfully used to detect glucose in real serum. Considering the convenience and controllability of two-step electrodeposition, the α-CD-rGO/Ni-MOF/TM composite holds great promise for commercial potential, and also provides direction and technical reference for the synthesis of MOF/carbon material composites.

Ni0.96S/NiS/Ni3S2 coated three-dimensional graphene composite for high energy storage and capacitance retention supercapacitors

This research prepares a new Ni0.96S/NiS/Ni3S2 flower-like particles by hydrothermal sulfidation. Fumaric acid is used as a carbon source to synthesize three-dimensional graphene (3DG) to disperse Ni0.96S/NiS/Ni3S2 flower-like particles to obtain Ni0.96S/NiS/Ni3S2/3DG composite material. The Ni0.96S/NiS/Ni3S2/3DG-10 has the best electrochemical performance. The specific capacitance of Ni0.96S/NiS/Ni3S2/3DG-10 is up to 2454.1 F g−1 at current density of 1 A g−1. In addition, at two-electrode applications, the energy density of Ni0.96S/NiS/Ni3S2/3DG-10//AC is as high as 51.7 Wh kg−1. After 8000 cycles at a current density of 10 A g−1, the capacitance attenuation of Ni0.96S/NiS/Ni3S2/3DG-10//AC is only 7.8%. The interaction between different phases can increase the storage space of charge. The special flower-like morphology can provide extra large buffer space for volume changes, thus improving the cyclic stability of the material. Furthermore, Appropriate 3DG quality can effectively improve the dispersion of particles, accelerate electrolyte penetration and ion transport, and give full display to the synergy between pseudo-capacitance and double layer capacitance. Therefore, this research provides a new idea for designing a metal sulfide composite carbon material with a controllable structure and applying it to energy storage equipment.

Polyethyleneimine/activated carbon paper-based material for low-concentration hexavalent chromium removal

Activated carbon paper-based materials were prepared from softwood pulp, activated carbon powder, and polyester fiber through wet forming process. Then polyethyleneimine was loaded on the activated carbon paper-based materials using physical impregnation method to fabricate green, low cost, and degradable PEI/activated carbon composite paper-based adsorbent materials (PPCA) for the removal of Cr(VI) from drinking water. The surface characteristics of the adsorbent were analyzed by SEM, EDX, BET, FT-IR, and XPS. It was found that the maximum adsorption capacity of Cr(VI) could reach up to 1.58 mg g−1 when the PEI immersion concentration is 1%, the contact time is 180 min, the temperature is 30 °C and pH = 2. The adsorption of Cr(VI) on PPCA conformed to both the freundlich isotherm model and the quasi-second-order kinetic model, indicating that the adsorption was multi-molecular layer adsorption controlled by chemical reaction process. The adsorption mechanism of Cr(VI) on PPCA included electrostatic attraction, redox and chelation. Overall, this study provides a green, large-scalable production way for the preparation of biodegradable adsorption materials for the efficient removal of Cr(VI) from drinking water aiding the safe management of aqueous system.Graphical abstract

Implementing Catalysts into Electrospun Composite Carbon Nanofiber (CNF) Electrodes for Ammonia Production from Photoelectrocatalytic Nitrate Reduction

While novel carbon nanomaterials can serve as electrodes with exceptional electrical properties, carbon nanofibers (CNFs) merit further investigation for applications as electrodes in environmentally-relevant photoelectrocatalysis. Tunable, durable CNF structures can be easily synthesized as a convenient framework for catalyst implementation. Herein we investigate how catalysts can be integrated into carbon nanofiber mats to enhance the photoelectrocatalysis of nitrate reduction. As a frequent contaminant in agriculturally-intensive regions, the negative value of nitrate containing streams may be used to produce ammonia as a value-added product and to improve water quality in the resulting output stream. Catalysts were implemented using different methods (in situ sol gel, chemical reduction, electrochemical) on two different CNF composites (with and without titanium dioxide). We focus on copper as a catalyst due to its promising performance and economic advantage over traditional platinum group metals. After thorough characterization of the catalyst-CNF frameworks via XPS, XRD, Raman, the catalyst performance was measured by nitrate reduction product selectivity, catalyst lifetime, and Faradaic efficiency. The flexibility of CNF synthesis and catalyst implementation will provide photoelectrodes with properties desirable for the electrochemical reduction of nitrate in environmental conditions to generate valuable products. This work will help identify the types and properties of next-generation carbon composite electrode materials that are most promising for resource recovery and for improving photoelectrochemical catalytic cells purposed for drinking water treatment.

Strengthen Synergistic Effect of Soft Carbon and Hard Carbon Toward High-Performance Anode for K-Ion Battery.

Synergistic effect of soft carbon and hard carbon has been proven to be useful for obtaining excellent anode materials for potassium ion battery, which is determined by the mixing degree of precursors. Inspired by the formation of proteins in biology, peptide bonds are used to connect the precursors of the two sort of carbon to prepare soft-hard hybrid carbons with stronger synergistic effects. The hard carbon domain with nanometer size is so highly distributed in the soft carbon that the synergistic effect between two sorts of carbon is significantly enhanced. After the optimization, the diffusion coefficient of as-prepared hybrid carbon (CSHC3-6-1200) is 10 times larger than that of corresponding carbon synthesized by physical method. Consequently, CSHC3-6-1200 can maintain a specific capacity of 71.6 mAh g-1 at a high current density of 1600 mA g-1. It is believed that this new preparation route may bring a new perspective to the development of soft and hard composite carbon material anodes with high power density and ultralong service life.

Materials for evaporation‐driven hydrovoltaic technology

AbstractWater constitutes the largest energy carrier on earth, absorbing more than 70% of the solar energy received by the earth's surface, yet its low exploitation has been a constant concern. The hydrovoltaic effect is an emerging technology that generates electricity through the direct interaction between nanomaterials and water of various forms (raindrops, waves, flows, moisture, and natural evaporation). Especially, the evaporation‐driven hydrovoltaic effect is a spontaneous and ubiquitous process that can directly convert thermal energy from the surrounding environment into electricity without the demand for additional mechanical work, which shows unique advantages compared with other hydrovoltaic effects. A variety of nanostructured materials have been steadily developed for evaporation‐driven hydrovoltaic devices (EHDs) in recent years. However, there has been a lack of a clear specification on the selection and design of materials for improving device performance. Herein, we first analyze the mechanisms of EHDs followed by a summarization of the recent advances in materials, including carbon materials, biomass‐based materials, metal oxides, composite materials, and others. We then discuss the strategies for improving the energy conversion efficiency and the output power in terms of structural design, surface modification, and interface treatment. Finally, we provide an outlook on the potential applications of electricity generation, sensors, and desalination technology, as well as the challenges and prospects for the development of this emerging technology in the future.

Performance comparison of simultaneo us detection Heavy-Metal ions based on carbon materials electrochemical sensor

In this study, oak biomass carbon (BC) and BC-Au composite materials were synthesized by the pyrolysis method to construct BC-Au electrode and ionic liquid carbon paste electrode (CILE) composed of BC, graphite and 1-octyl-3-methylimidazolium hexafluorophosphate(IL) for simultaneous detection of Cd2+, Pb2+ and Hg2+. The obtained materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman spectrum (Raman). The electrochemical performance of two sensors was studied using square wave voltammetry (SWV), cyclic voltammetry (CV), electrochemical impedance methods (EIS) and linear sweep voltammetry (LSV). The obtained results show that the detection performance of CILE was clearly better than BC-Au in terms of wide linear range(0.5 µM to 6.0 µM for Cd2+, Pb2+ and Hg2+) and high sensitivity(the detection limit toward Cd2+, Pb2+ and Hg2+ is 0.09 µM, 0.366 µM and 0.489 µM, respectively). In addition, a portable electrochemical sensing device matched with one-off CILE was constructed, which would enhance the ability for multiple electrochemical detection situations and show prospective applications for the detection of Cd2+, Pb2+ and Hg2+ in real lakes and cucumber samples.

Constructing a Carbon-Encapsulated Carbon Composite Material with Hierarchically Porous Architectures for Efficient Capacitive Storage in Organic Supercapacitors

Hierarchical porous activated carbon (HPAC) materials with fascinating porous features are favored for their function as active materials for supercapacitors. However, achieving high mass-loading of the HPAC electrodes remains challenging. Inspired by the concepts of carbon/carbon (C/C) composites and hydrogels, a novel hydrogel-derived HPAC (H-HPAC) encapsulated H-HPAC (H@H) composite material was successfully synthesized in this study. In comparison with the original H-HPAC, it is noticed that the specific surface area and pore parameters of the resulting H@H are observably decreased, while the proportions of nitrogen species are dramatically enhanced. The free-standing and flexible H@H electrodes with a mass-loading of 7.5 mg/cm2 are further prepared for electrochemical measurements. The experiments revealed remarkable reversible capacitance (118.6 F/g at 1 mA/cm2), rate capability (73.9 F/g at 10 mA/cm2), and cycling stability (76.6% of retention after 30,000 cycles at 5 mA) are delivered by the coin-type symmetric cells. The cycling stability is even better than that of the H-HPAC electrode. Consequently, the findings of the present study suggest that the nature of the HPAC surface is a significant factor affecting the corresponding capacitive performances.

Preparation of graphene oxide composite nitrogen-doped carbon (GO@NCs) by one-step carbonization with enhanced electrosorption performance for U(VI)

High-performance graphene oxide composite nitrogen-doped carbon (GO@NCs) materials were prepared at different temperatures (600, 700 and 800 °C) by a one-step carbonization method. The electrosorption performances of GO@NCs for U(VI) were investigated. The results showed that the specific surface area of GO@NC-700 was 266.3 m2·g−1. The doped nitrogen mainly existed in the form of pyridine (N-6), pyridine (N-5), and quaternary-N (N-Q). The incorporation of nitrogen atoms and graphene oxide effectively improved the electrochemical performance of the material, and the maximum specific capacitance of GO@NC-700 was 289.8 F·g−1. At the same time, nitrogen-containing functional groups improved the selectivity to uranium and weakened the repulsive effect of coexisting ions. Therefore, the removal efficiency of GO@NC-700 electrode structure can reach 98.63 % at −1.2 V (vs. SCE, pH = 5). The maximum adsorption capacity of GO@NC-700 was 879.2 mg·g−1, which was 4 times higher than that of simple adsorption (202.3 mg·g−1). The material had good cycle performance, and the capacity loss was less than 10 % after 5 cycles. The above results show that the GO@NC-700 electrode had special potential applications in removing uranium from aqueous solutions, which provides a new and effective method for the treatment of uranium-containing wastewater. Environmental implicationGraphene oxide composite nitrogen-doped carbon (GO@NCs) can effectively separate uranium (VI) from the solution and reduce its threat to the environment and human body.

Preparation of Iron Carbon Composite Material by Extracting Iron from Bauxite Residue and Its Adsorption of Heavy Metal Cd(II).

An effective method of iron extraction from bauxite residue was explored, and iron was used to prepare iron carbon composite material, which have a good adsorption effect on the heavy metal cadmium. After acid washing, acid leaching, Fe(III) reduction and ferrous oxalate decomposition, FeSO4·H2O(RM) was successfully extracted from bauxite residue, and the iron loss was only 4.35%. FexOy-BC(RM) nanocomposite materials were prepared by loading FeSO4·H2O(RM) onto walnut shell biochar (BC) (a kind of agricultural and forestry waste) by an in situ reduction and oxidation method. The results showed that the adsorption effect of FexOy-BC(RM) on Cd(II) was better than that of commercial FexOy-BC. XPS, TEM, SEM characterization analysis showed that FexOy-BC(RM) immobilized Cd(II) by adsorption, complexation, etc.to achieve a highly efficient adsorption of heavy metal Cd(II) in wastewater.

Preparation, Mechanism and Bioactivity of Nano-Hydroxyapatite/Poly(DTH carbonate) Composite Bone Repair Material

A novel nano-hydroxyapatite/poly(desaminotyrosyl-tyrosin-hexyl ester) carbonate composites bone cement was prepared using nano-hydroxyapatite and poly(desaminotyrosyl-tyrosin-hexyl ester) carbonate. The experimental results indicate that the compressive strength of the nano-hydroxyapatite/poly(desaminotyrosyl-tyrosinhexyl ester) carbonate composite bone cement which contained bone can reach 18.2 MPa, which can satisfy the repair demand of cancellous bone parts. Nano-hydroxyapatite and poly(desaminotyrosyl-tyrosinhexyl ester) carbonate are combined by hydrogen bonding. Calcium citrate is formed by reaction of Ca2+ in nano-hydroxyapatite with the carboxyl group in citric acid. The nano-hydroxyapatite/poly(desaminotyrosyltyrosin-hexyl ester) carbonate composite bone cement was soaked in simulated body fluid to form hydroxyapatite. The results of the cell culture experiment and animal implantation indicated that nano-hydroxyapatite/poly(desaminotyrosyl-tyrosin-hexyl ester) carbonate composite bone cement had good biocompatibility and osteogenesis capability. This study is useful for the development of nanohydroxyapatite/ poly(desaminotyrosyl-tyrosin-hexyl ester) carbonate composite materials in the field of bone repair.