Bamboo Carbon Research Articles

Performance and Mechanism of Porous Carbons Derived from Biomass as Adsorbent for Removal of Cr(VI)

To solve the problem of heavy metal hexavalent chromium (Cr(VI)) pollution in water bodies, this study was carried out to prepare nitrogen-doped porous carbon by using bamboo shoots as the raw material and KHCO3 as the activator, which has a good ability to remove Cr(VI) from water bodies. The prepared N-doped carbon materials were characterized by thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), elemental analysis, and scanning electron microscopy (SEM). The results showed that the prepared carbon material had hierarchical pore structures and abundant functional groups, which is conducive to the adsorption of Cr(VI). The effects of various factors on the adsorption performance of Cr(VI), such as the carbon materials prepared under different conditions, the pH of the initial solution, the concentration of the initial solution, and the contact time between the carbon and Cr(VI), were explored. The results showed that the bamboo shoot-based nitrogen-doped carbon materials, especially BSNC-800 (prepared at 800 °C with a mass ratio of KHCO3 to bamboo shoot of 4:1), performed well in removing Cr(VI) from a water solution. The maximum adsorption of Cr(VI) by BSNC-800 under equilibrium conditions was 385.8 mg g−1 (conditions: at the pH of 2 with the initial concentration of 400 mg L−1). The adsorption kinetics and isotherms were analyzed, and the adsorption mechanism was discussed. It can be found that the adsorption of Cr(VI) by BSNC-800 fits better with the Langmuir isotherm model and the pseudo-second-order kinetic model. The adsorption mechanism between the Cr(VI)-containing solution and BSNC-800 was controlled by membrane diffusion and chemisorption. The results broaden the ways of utilizing biomass resources as precursors of carbon materials, which is significant and helpful for applying biomass carbon materials as adsorbents for wastewater treatment.

Aggregation induced emission “Turn on” ultra-low detection of anti-inflammatory drug flufenamic acid in human urine samples by carbon dots derived from bamboo stem waste

Carbon dot-based fluorescence sensors have attracted research interest for the selective determination of anti-inflammatory drugs in biological fluids and environments. The overdose and accumulation of anti-inflammatory drugs in tissues can cause chronic side effects including abdominal pain, and renal damage. Herein, we report a new fluorescent probe, bamboo stem waste-derived carbon dots (BS-CDs) for highly sensitive detection of Flufenamic acid (FA), a hazardous anti-inflammatory drug. The UV–vis absorption spectra of BS-CDs show a redshifted absorption peak at 283 nm upon the addition of FA suggesting strong binding interaction between BS-CDs and FA molecule. The BS-CDs showed a fluorescence enhancement (∼2-fold) detection for FA (400 μM) in the linear concentration range (0.40 → 0.65 μM) with a limit of detection (LoD; 17 nM) and binding constant (Ka = 1.33 × 10−3 M−1). The time-resolved fluorescence decay analysis showed that the average lifetime of BS-CDs has slightly changed (4.42 → 4.67 ns) by the interaction with FA through the aggregation-induced emission (AIE) process. The interference, pH, and effect of time results suggest that BS-CDs are highly selective probes for FA detection and do not show any interference involvement during FA detection. The confirmation of the structure and morphology changes of BS-CDs after interaction with FA was carried out by XRD, FESEM, HRTEM, FTIR, and Raman spectroscopy. The practicability of the BS-CDs probe was proved by the detection of FA in human urine samples with recovery of 103–109 %. This suggests that the proposed BS-CDs-based ‘turn-on’ sensor could be used to determine the FA in biological fluids.

Employing Manganese Dioxide and Bamboo Carbon for Capacitive Water Desalination and Disinfection.

A manganese dioxide (MnO2)/bamboo carbon (BC) composite was prepared using hydrothermal and impregnation methods and used for the capacitive desalination (CDI) and disinfection of water. The results showed that these composites had fast Na+ ion exchange and charge transfer properties. During the CDI process, these composites' electrodes exhibited good cycle stability and electrosorption capacity (4.09 mg/g) and an excellent bactericidal effect. These carbon-based composite electrodes' bactericidal rate for Escherichia coli could reach 99.99% within 180 min; therefore, they had good performance and are a good choice for high-performance deionization applications.

Bamboo’s Role in Climate Change Adaptation and Mitigation: An Analysis of Biomass, Carbon Stock, and Economic Potential in Tanzania

Bamboo, a rapidly growing member of the grass family, thrives across diverse climates worldwide and offers vital ecosystem services essential for human well-being and economic development. Notably, bamboo releases 35% more oxygen than other trees and sequesters an average of 12 tons of carbon dioxide per hectare, highlighting its significant ecological benefits. This study analyses the contribution of bamboo to climate change adaptation and mitigation, focusing on Tanzania as a case study. Specifically, the study aims to determine the amount of biomass and carbon stock of bamboo in Tanzania, and estimate the financial benefits from including bamboo in carbon payment projects like REDD+. Utilizing adapted allometric models and data from the National Forest Resources Monitoring and Assessment (NAFORMA) of 2015, the study reveals that Tanzania possesses 4.04 billion tons of stored bamboo biomass and 1.9 billion tons of stored bamboo carbon, translating to an estimated 7.6 billion US dollars in unutilized conservation profit from carbon trading. The findings indicate that 51.4% of the stored bamboo biomass, carbon, and potential conservation profit are concentrated in the genus Bambusa, with nearly half of these resources located in the southern regions of Lindi and Mtwara. These results underscore the substantial ecological and economic benefits of bamboo ecosystem services, emphasizing the need for stakeholders to formulate strategies for the sustainable production, conservation, and management of bamboo in Tanzania. The study provides a benchmark for developing policies and plans that leverage bamboo's potential in climate change adaptation and mitigation, promoting environmental sustainability and economic growth.

Efficient Transformation of Water Vapor into Hydrogen by Dielectric Barrier Discharge Loaded with Bamboo Carbon Bed Structured by Fibrous Material.

A new method of efficiently transforming water vapor into hydrogen was investigated by dielectric barrier discharge (DBD) loaded with bamboo carbon bed structured by fibrous material in an argon medium. Hydrogen productivity was measured in three different reactors: a non-loaded DBD (N-DBD), a bamboo carbon (BC) bed DBD (BC-DBD), and a quartz wool (QW)-loaded BC DBD (QC-DBD). The effects of the quality ratio of BC to QW and relative humidity on hydrogen productivity were also investigated in QC-DBD at various flow rates. The reaction process and mechanism were analyzed by scanning electron microscopy, X-ray photoelectron spectroscopy, N2 physisorption experiments, infrared spectroscopy, and optical emission spectroscopy. A new reaction pathway was developed by loading BC into the fibrous structured material to activate the reaction molecules and capture the O-containing groups in the DBD reactor. A hydrogen productivity of 17.3 g/kWh was achieved at an applied voltage of 5 kV, flow rate of 4 L/min, and 100% relative humidity (RH) in the QC-DBD with a quality ratio of BC to QW of 3.0.

N/S‐Doped Hierarchical Porous Bamboo Carbon Fibers with Ultra‐Large Surface Area and Highly Exposed Active Sites for Flexible Zinc‐Air Battery†

Comprehensive SummaryFacile mass transport channel and accessible active sites are crucial for binder‐free air electrode catalysts in rechargeable flexible zinc‐air battery (ZAB). Herein, a ZnS/NH3 dual‐assisted pyrolysis strategy is proposed to prepare N/S‐doped hierarchical porous bamboo carbon cloth (HP‐NS‐BCC) as binder‐free air electrode catalyst for ZAB. BCC fabric with abundant micropores is firstly used as flexible carbon support to facilitate the heteroatom‐doping and construct the hierarchical porous structure. ZnS nanospheres and NH3 activization together facilitate the electronic modulation of carbon matrix by N/S‐doping and optimize the macro/meso/micropores structure of carbon fibers. Benefiting from the highly‐exposed N/S‐induced sites with enhanced intrinsic activity, the optimized mass transport of biocarbon fibers, as well as the ultra‐large specific surface area of 2436.1 m2·g–1, the resultant HP‐NS‐BCC catalyst exhibits improved kinetics for oxygen reduction/evolution reaction. When applied to rechargeable aqueous ZABs, it achieves a significant peak power density of 249.1 mW·cm−2. As binder‐free air electrode catalyst, the flexible ZAB also displays stable cycling over 500 cycles with a minimal voltage gap of 0.42 V, showcasing promising applications in flexible electronic devices.

Performance and mechanistic studies of rapid atenolol degradation through peroxymonosulfate activation by V, Co, and bamboo carbon catalyst.

Developing the Co-based catalysts with high reactivity for the sulfate radical (SO4-·)-based advanced oxidation processes (SR-AOPs) has been attracting numerous attentions. To improve the peroxymonosulfate (PMS) activation process, a novel Co-based catalyst simultaneously modified by bamboo carbon (BC) and vanadium (V@CoO-BC) was fabricated through a simple solvothermal method. The atenolol (ATL) degradation experiments in V@CoO-BC/PMS system showed that the obtained V@CoO-BC exhibited much higher performance on PMS activation than pure CoO, and the V@CoO-BC/PMS system could fully degrade ATL within 5min via the destruction of both radicals (SO4-· and O2-··) and non-radicals (1O2). The quenching experiments and electrochemical tests revealed that the enhancing mechanism of bamboo carbon and V modification involved four aspects: (i) promoting the PMS and Co ion adsorption on the surface of V@CoO-BC; (ii) enhancing the electron transfer efficiency between V@CoO-BC and PMS; (iii) activating PMS with V3+ species; (iv) accelerating the circulation of Co2+ and Co3+, leading to the enhanced yield of reactive oxygen species (ROS). Furthermore, the V@CoO-BC/PMS system also exhibited satisfactory stability under broad pH (3-9) and good efficiency in the presence of co-existing components (HCO3-, NO3-, Cl-, and HA) in water. This study provides new insights to designing high-performance, environment-friendly bimetal catalysts and some basis for the remediation of antibiotic contaminants with SR-AOPs.

Bamboo-derived activated carbon-functionalized ZnO NPs for non-enzymatic glucose sensing

Recently, bamboo activated carbon (BAC) attracted the researchers with considerable attention and as electrode material for biosensor application, due to its high surface to volume ratio, low cost, easy of synthesis, good stability, and better profit in the matter of commercialization. The present work report the synthesis of bamboo activated carbon and functionalization of bamboo carbon with ZnO nanoparticles through the green approached method with different weight ratios for non-enzymatic glucose biosensing. Moreover, bamboo leaves work as a capping and stabilizing agent for the functionalization of activated carbon. As synthesized BAC, biosynthesized ZnO and BAC functionalized ZnO NPs with different ratios of ZnO/BAC1wt%, ZnO/BAC 2 wt% and ZnO/BAC 3 wt% were analyzed with nano-characterization tools such as XRD, FTIR, UV–Visible spectroscopy, FESEM, EDX analysis, TEM. As fabricated modified electrodes ZnO/BAC 2 wt% showed better conductivity followed by ZnO/BAC 3 wt% and ZnO/BAC1wt%. Moreover, the electrochemical performance of the modified ZnO/BAC 2 wt% /Screen printed gold electrode (SPCE) exhibited good catalytic nature towards the enzyme-free glucose oxidation and the results showed an excellent sensitivity of 5048.61 μA mM−1 Cm−2, the limit of detection 0.40 μM with linearity of 1–2 mM with better stability and repeatability. This proves that a fabricated ZnO/BAC 2 wt% /SPCE sensor will be a cost-effective biosensor.

Construction of bimetal heterostructures on bamboo fiber carbon: Triple-conductive structure and enhanced microwave absorption

The effective coupling of magnetic loss and dielectric loss has become a mainstream method for achieving high-performance microwave absorption (MA) materials. Herein, wasted bamboo fibers were applied to prepare carbon-based magnetic composites through high-temperature in-situ growth of different bimetallic nanoparticles on bamboo fiber carbon (BFC). The surface morphologies, phase information, and electromagnetic properties of different bimetal-decorated BFC composites were investigated. Modulation of bimetal species and FeCo molar ratio affords the composites different MA performances. Remarkably, when molar ratio of Fe3+ and Co2+ was 1:2, a broad effective absorption bandwidth of 5.6 GHz and a RLmin value of − 57.3 dB at a small thickness of 1.86 mm were achieved with the mass loading of only 15 wt%. Such excellent performances were benefited from a unique triple-conductive structure that bimetallic core-shell nanoparticles embedded within carbon nanowires decorated on the BFC, realizing perfect impedance matching as well as strong attenuation ability. This work would provide a novel perspective for value-added utilization of bamboo resource and prevention of microwave pollution.

Synergistic effects of heteroatom doping and narrow micropores on carbon dioxide capture in bamboo shoot shell-based porous carbon

Owing to the exponential increase in human populace and anthropogenic activities, there has been a significant release of CO2 into the atmosphere, precipitating environmental quandaries such as the greenhouse effect. Consequently, the sequestration of CO2 emerges as an imperative endeavor. While prior research has illuminated the potential of surface-modified biochar to augment its sequestration efficacy via avenues such as activation and nitrogen doping, scant attention has been devoted to diatomic modification strategies. In this investigation, a novel array of nitrogen and sulfur co-doped porous carbons were engineered, utilizing discarded bamboo shoot husks as a carbonaceous substrate, thiourea as a dual-source dopant for nitrogen and sulfur, and potassium carbonate as an activating agent, through an intricate triphasic synthesis procedure. The study meticulously evaluated their CO2 sequestration capabilities, scrutinizing the influence of activator concentration and thermal activation conditions on the adsorption dynamics. The resultant N, S co-doped activated carbons manifested superlative CO2 capture capacities. A salient specimen, designated BSNC-800–2, showcased an unparalleled CO2 adsorptive uptake of 5.93 mmol/g at 0 °C and 3.83 mmol/g at 25 °C, attributable to its expansive specific surface area and substantive microporous volume. It was discerned that the interplay between the dopant concentrations and the proportion of narrow micropores was pivotal in modulating CO2 adsorption efficacy. Furthermore, these samples exhibited a suite of remarkable CO2 adsorption attributes, encompassing robust cyclic stability, elevated CO2/N2 selectivity, and a moderate heat of adsorption. Isothermal adsorption model simulations at 25 °C across all samples demonstrated a high fidelity to empirical observations when aligned with the Freundlich isotherm. Thermodynamic assessments posited that the sequestration of CO2 via the nitrogen-sulfur co-doped bamboo-derived porous carbons proceeded as a spontaneous and exothermic process, thereby corroborating the adsorbents' proficiency in CO2 entrapment. This study is anticipated to inspire new methods for synthesizing nitrogen-sulfur co-doped carbon and provide fresh insights into CO2 adsorption from flue gas using hetero-doped carbon.

In-situ growth of FeCoNi nanoparticles onto 1D bamboo fiber carbon for enhanced electromagnetic wave absorption

Transformation of biomass wastes or residues into functional carbon materials is one of the main approaches to improve their added value and utilization rate. In this work, an example of discarded bamboo fibers was used to fabricate trimetallic functionalized 1D carbon composite with excellent electromagnetic wave (EW) absorption performances, via a simple solvothermal-carbonization method. When the thickness is below 2.0 mm, the composite has a minimum reflection loss (RLmin) of −61.6 dB and a specific RL value of −253 dB mg−1 mm−1, as well as an effective absorption band of 5.4 GHz at a low mass loading of 15 wt%. Such good performances are attributed to the synergetic effect of dielectric loss from bamboo fiber carbon and magnetic loss from Fe–Co–Ni interaction that greatly improved the impedance matching. In addition, bamboo fibers with rough surface could endow ample core-shell FeCoNi nanoparticles to uniform embed, which brings large number of interfaces and defects for the composite to enhance the electromagnetic loss capacity. This work provides a trimetallic compositing idea and a sustainable design approach for using biomass wastes to produce stable and efficient EW absorption materials.

Construction of polylactic acid-based flame retardant composites by zinc oxide and bamboo carbon

Construction of polylactic acid-based flame retardant composites by zinc oxide and bamboo carbon

Waste bamboo-derived magnetically separable bamboo-activated carbon: from characterization to effective remediation of fluoride (F-) ions from water.

An effective and affordable nanoadsorbent, magnetically separable magnetite-activated bamboo carbon (MABC), was obtained from waste bamboo biomass via pyrolysis of bamboo chunks and the co-precipitation method using ferrous and ferric chloride as iron precursors. The synthesized nanosorbents were characterised using XRD, SEM, and DLS techniques to study the surface characteristics and morphology. Chemical composition, optical absorption, and magnetic properties were studied using FTIR spectroscopy, UV-vis spectroscopy, and VSM, respectively. The BET surface area, porosity and surface charge were determined using N2 adsorption-desorption isotherm and zeta potential technique. The cytotoxicity and antimicrobial properties of BC, ABC and MABC were investigated against prokaryotes and eukaryotes. The result demonstrates the nontoxic nature of BC, ABC and MABC, indicating their significant potential for addressing water treatment using sustainable and eco-friendly nanosorbents. Comparative fluoride ion removal studies were performed using ABC and MABC NPs. About 99.6% of F- ions were adsorbed using MABC and 75.9% were adsorbed using ABC. Thus, MABC NPs were used as sorbents for the rest of the fluoride ion adsorption parameters. The batch fluoride ion sorption was performed at various sorption parameters, such as diverse solution pH (1.0-8.0), temperature (25-45 °C), agitation times (10-60 min), and adsorbent dose (0.01-0.04 g L-1). The pseudo-second-order kinetic model exhibited the best fit with F- ion adsorption (95.96 mg g-1) compared with the pseudo-first-order model (12.30 mg g-1), thereby indicating chemisorption adsorption. The exhausted MABC was recovered from the aqueous solution using a bar magnet. Regeneration studies of exhausted MABC were successfully performed using NaOH (0.1 M) as a desorbing agent.

Biomass-derived three-dimensional robust solar evaporator for efficient steam generation, water purification and salt-resistant desalination

High-performance salt-resistant solar evaporators breaking the theoretical limit of solar steam generation are highly desired for solar water evaporation technology. However, low-cost, scalable and continuous solar steam generation remains a big challenge. Herein, a robust biomass-based salt-resistant three-dimensional (3D) evaporator is designed and developed, which is composed of bamboo leaf-derived carbon (BLC) and heat-insulating macroporous melamine foam (MF), showing the integrated merits for the boosted solar evaporation performances. The designed BLC/MF evaporator presents excellent photothermal conversion ability with an evaporation rate as high as 2.29 kg m-2h−1 and acceptable evaporation efficiency of 93.95 % under one-sun irradiation. The superior performance endows BLC/MF evaporator with flexible and versatile behaviors to purify various water sources to produce clean water meeting the standard level of World Health Organization (WHO) for drinkable water. Significantly, the BLC/MF evaporator maintains a similar evaporation rate in saline solutions and can work stably at high salinities without salt deposition. This present discloses that the BLC/MF evaporator can be served as a feasible and robust alternative for solar water evaporation in various water environment for clean water production.

Bamboo stem biomass waste-derived excitation-dependent carbon dots for nanomolar detection of fungicide dodine in real samples and their pH-sensitive bacterial interaction studies

The present work investigates the mitigation of dodine (DD) fungicide residue, which is recognized for its adverse environmental consequences, by the use of carbon dots (CDs) prepared from bamboo stem biomass (BS-CDs). This work focuses on the synthesis of BS-CDs using the one-step hydrothermal method, which has been shown the remarkable sensing efficiency even at low concentrations. The synthesized BS-CDs were analyzed through X-ray diffraction (XRD), X-ray photoelectron (XPS), Fourier transform infrared (FTIR), Raman spectroscopy, and high-resolution transmission electron microscopic techniques (HRTEM). The BS-CDs were spherical and mono-dispersed, with an average size of 3.71 nm. By utilizing the fluorescence quenching property of BS-CDs, a detection limit of 4.3 nM for DD was successfully achieved. The non-toxic profile of BS-CDs has been confirmed by cytotoxicity studies using MTT assay. Application research mostly focuses on exploring the interaction between CDs and bacteria, hence elucidating their pH-sensitive characteristics. Real sample (fruits and vegetables) analysis was carried out to assess the viability of the detection approach, and the results showed respectable recovery rates (105 to 115 %) with a relative standard deviation (∼2 %). The findings provide a positive outlook for addressing the presence of DD residue in ecologically vulnerable regions, emphasizing the viability of using BS-CDs as an environmentally friendly remedy.

Utilization of Biomaterial (Bamboo Carbon) as Phase Change Material (PCM) for Electric Vehicle Batteries Cooling Media

Utilization of Biomaterial (Bamboo Carbon) as Phase Change Material (PCM) for Electric Vehicle Batteries Cooling Media

Pembuatan Karbon Aktif Bambu dengan Metode Termolisis dan Karakterisasinya

This study aims to determine the manufacture of bamboo activated carbon by the thermolysis method and to know how to characterize bamboo activated carbon after being activated by the thermolysis method and using an activating agent. The method used in this research is the experimental method. Bamboo is carbonized at 350°-400°C and immersed in a 20% phosphoric acid solution. Activated carbon was characterized by Fourier Transform InfraRed spectroscopy (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microsope-Energy Dispersive X-ray spectrometric (SEM-EDX). Characterization with XRD showed that the 2θ angle of the bamboo carbon after activation was 24°, 37.5°, and 44°. Characterization with FTIR showed that the functional groups detected on activated carbon were O-H, C-H alkane groups, C=O, C=C, C-C , and C-O. Characterization by SEM showed that the activated carbon from the shoots had a neat looking surface. EDX analysis showed that the elemental content of carbon electrodes colored by carbon elements was 78.38%.

Bamboo fiber-derived porous carbon microspheres decorated with MnO2 for enhanced supercapacitor performance

Manganese dioxide holds great potential as a pseudocapacitive material for supercapacitors. However, its limited electrical conductivity hampers the realization of its theoretically predicted capacitance. In this study, we successfully synthesized MnO2 in-situ on porous carbon microspheres derived from bamboo pulp fibers using a hydrothermal method. The morphology and phase of MnO2 were controlled by adjusting reduction reaction of KMnO4. Porous carbon spheres coated with sheet-like δ-MnO2 were obtained at a low Mn/C ratio, resulting in an impressive specific surface area of 401.4 m2 g−1. The composite exhibited remarkable specific capacitance of 364.4 F g−1 at a current density of 0.5 A g−1 and exhibited excellent capacitance retention of 99.7 % after undergoing 10,000 cycles. Incorporation of MnO2 improved the capacitance performance of porous carbon spheres by 81 %. This study presents promising prospects for the sustainable and environmentally friendly production of bamboo-derived carbon composite materials for supercapacitors.

Honeycomb-like bamboo powders-derived porous carbon with low filler loading, high-performance microwave absorption

Nowadays, the problem posed by electromagnetic wave pollution to electronic devices and biological systems is of serious concern. To create a microwave absorber, component and structural modulation is crucial. Biomass-derived porous carbon is a potential material for microwave absorption applications due to the characteristics of lightweight, high specific surface area, and significant dielectric loss. In this study, by examining the impact of various KOH concentrations on the pore structure, bamboo powders with an 80-mesh size were used as a raw material to create honeycomb-like bamboo powders-derived porous carbon (BPDPC) materials. The activation mechanism of the BPDPC material is also explained. Based on the electromagnetic parameters, the sample BPDPC-4 impregnated with 4 mol/L KOH has a maximum effective absorption bandwidth (RL ≤ −10 dB) of 4.76 GHz at a matching thickness of 2.0 mm, covering 11.54–16.30 GHz and a minimum reflection loss (RLmin) of −40.99 dB at a matching thickness of 2.2 mm at 5 wt% ultra-low filler loading. Due to polarization loss, conduction loss, and the mutually beneficial effects of multiple electromagnetic wave reflection and scattering, the superior wave absorption performance is explained. This work also serves as a reference for investigating porous carbon generated from biomass.

Modeling stand biomass for Moso bamboo forests in Eastern China.

Stand biomass models can be used as basic decision-making tools in forest management planning. The Moso bamboo (Phyllostachys pubescens) forest, a major forest system in tropical and subtropical regions, represents a substantial carbon sink, slowing down the rise of greenhouse gas concentrations in the earth's atmosphere. Bamboo stand biomass models are important for the assessment of the contribution of carbon to the terrestrial ecosystem. We constructed a stand biomass model for Moso bamboo using destructively sampled data from 45 sample plots that were located across the Yixing state-owned farm in Jiangsu Province, China. Among several bamboo stand variables used as predictors in the stand biomass models, mean diameter at breast height (MDBH), mean height (MH), and canopy density (CD) of bamboo contributed significantly to the model. To increase the model's accuracy, we introduced the effects of bamboo forest block as a random effect into the model through mixed-effects modeling. The mixed-effects model described a large part of stand biomass variation (R2=0.6987), significantly higher than that of the ordinary least squares regression model (R2=0.5748). Our results show an increased bamboo stand biomass with increasing MH and CD, confirming our model's biological logic. The proposed stand biomass model may have important management implications; for example, it can be combined with other bamboo models to estimate bamboo canopy biomass, carbon sequestration, and bamboo biomass at different growth stages.