Journal of Natural Fibers
·
2022
·
IF 3.507
Yinzhi Yang,Yuqing Liu,Yuxi Fang,Yanfei Teng,Kaiyang Fang,Jinpeng Xie,Xinwang Cao,Zhongmin Deng
The bamboo shoot shell fibers were extracted by using environmental protection oxidant sodium percarbonate combined with alkali oxygen bath method. To explore the influence of various factors on its degumming, the efficiency of degumming through single-factor and orthogonal experiments was assessed. The results showed that the used method had a good effect on the degumming of bamboo shoot shell fiber, and most of the non-cellulose components such as hemicellulose, lignin, and pectin had been removed. After the treatment, the cellulose content and crystallinity were 73.19% and 61.40%, respectively. Taking the degumming rate as the index, the factors such as dosage of sodium percarbonate and hydrogen peroxide, soaking temperature, and time in alkali boiling treatment were optimized. The results showed that the degumming rate was 69.17% when the scouring temperature was 90°C, the alkali boiling time was 120 min, the dosage of sodium percarbonate was 24 g/L, and the dosage of hydrogen peroxide was 40 mL/L. The structure and properties of bamboo shoot shell fiber were analyzed by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analyzer (TGA). The prepared bamboo shoot shell fibers would be considered as a promising and sustainable raw material for the textile industry and other prospects in the future.
研究领域:
材料科学
·
纺织工程
✓ 已验证
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 8
·3410
·
IF 4.6
Yuyu He,Liangmeng Ni,Qi Gao,Hao Ren,Mengfu Su,Yanmei Hou,Zhijia Liu
To effectively remove methylene blue (MB) from dye wastewater, a novel activated carbon (BAC) was manufactured through co-pyrolysis of bamboo shoot shell and K2FeO4. The activation process was optimized to a temperature of 750 °C and an activation time of 90 min based on its excellent adsorption capacity of 560.94 mg/g with a yield of 10.03%. The physicochemical and adsorption properties of BACs were investigated. The BAC had an ultrahigh specific surface area of 2327.7 cm2/g and abundant active functional groups. The adsorption mechanisms included chemisorption and physisorption. The Freundlich model could be used to describe the isothermal adsorption of MB. The kinetics confirmed that the adsorption of MB belonged to the pseudo-second-order model. Intra-particle diffusion was the main rate-limiting step. The thermodynamic study showed that the adsorption process was endothermic and temperature was beneficial for the improvement of adsorption property. Furthermore, the removal rate of MB was 63.5% after three cycles. The BAC will have great potential for commercial development for purifying dye wastewater.Keywords:bamboo shoot shell;activated carbon;adsorption process;methylene blue;K2FeO4
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 136
·期 35
·47899
·
IF 2.188
Mingjie Guan,Zhiwei Zhang,Cheng Yong,Keke Du
Bamboo shoot shell fibers (BSSFs)/starch/poly(lactic acid) (PLA) ternary composites were prepared by blending BSSFs to starch/PLA matrices for the purpose of expanding BSSFs applications to enhance starch/PLA composites and creating a new low-cost biodegradable composite. The effects of BSSFs content (0–40 wt %) on the physical–mechanical properties were tested and interface compatibility and its mechanism to mechanical performance of BSSFs/starch/PLA composites were characterized by SEM-EDS, TG. The results showed that the mechanical strength, surface wettability, and water absorption of the composites continued improving when the BSSFs content increased from 0% to 20 wt %. However, mechanical modulus increased with increase in BSSFs content. The results of fracture microstructure and thermal property exhibited a good interfacial compatibility at low content of BSSFs and an interface debonding at high content of BSSFs. These investigations indicated that the BSSFs reinforcement to the composite is not consistent with interface compatibility of the ternary composites. The composites should be considered as a kind of green and low-cost biodegradable materials to replace traditional single-phase or multiphase materials. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47899.
研究领域:
材料科学
·
生物材料
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2023
·
IF 11.4
Ying Xu,Yi-Hui Liu,Ling-Hua Xu,Yu-Tong He,Jia-Long Wen,Tong-Qi Yuan
In this work, a rapid one-pot hydrated deep eutectic solvent (DES) pretreatment was proposed to facilitate the conversion of carbohydrates from lignocellulosic biomass to monosaccharides . Specifically, the pure and hydrated DES based on benzyl triethylammonium chloride (BTEAC), formic acid (FA) and water was used to pretreat bamboo shoot shells (BSS) by microwave heating. The pretreated solid residues were enzymatically saccharified to produce fermentable sugars, and the hydrolyzed carbohydrates and lignin remained in the hydrolyzate. The results showed that the yield of monosaccharides from the hydrated DES hydrolyzate (193.7–228.4 g/kg) was significantly higher than that (45.9–66.1 g/kg) of pure DES. The 30% hydrated DES pretreatment achieved the best glucose yield (89.03%) and a total monosaccharides yield of 555.4 g/kg, which corresponded to a conversion ratio of carbohydrates to monosaccharides of 87.0%. The proposed process is a robust method for the efficiently convert carbohydrates from BSS into monosaccharides.
研究领域:
生物化学
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可再生能源
✓ 已验证
产品关联
DOI
PubMed
高影响因子
POLYMER BULLETIN
·
2022
·Vol. 80
·期 2
·1817-1829
·
IF 2.843
Yang Yinzhi,Fan Fangwei,Xie Jinpeng,Fang Kaiyang,Zhang Qiang,Chen Yiren,Cao Xinwang,Deng Zhongmin
The composition of bamboo shoot shell is similar to hemp fiber, and whose traditional degumming process is expensive and easy to cause serious environmental pollution. Herein, acid pretreatment combined with alkali-oxygen bath degumming process was used to obtain bamboo shoot shell fibers. The effects of the dosages of sodium hydroxide and hydrogen peroxide, soaking temperature and time on degumming were discussed. The optimized process parameters of alkali-oxygen bath degumming were obtained by orthogonal experiment as follows: sodium hydroxide 24 g/L, hydrogen peroxide 40 mL/L, scouring temperature 95 °C and alkali boiling time 150 min. The degumming rate was 72.14%. The degummed fibers were separated from each other in a single fiber state, compared to that the control samples were closely arranged by lots of fibers with rough surface caused by the presence of many non-cellulose components. The crystallinity increased from the control (43.53%) to final fiber (64.35%). The prepared bamboo shoot shell fiber is rich in cellulose (73.19%), which would provide some references for the future application and development of bamboo shoot shell fiber potentially and widely used in many aspects.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2024
·
IF 1.3
Jianhai Wang,Fanen Zeng,Lu Lu,Hongfeng Xu,Bing Xu
Hierarchical porous carbon materials were synthesized from bamboo shoot shells via KOH activation. The physicochemical properties of bamboo shoot shell–based hierarchical porous carbon (BBCK) were investigated by scanning electron microscopy, X–ray diffraction, Raman spectroscopy, X–ray photoelectron spectroscopy, and N 2 adsorption–desorption analyses. Results confirmed that the ratio of KOH to BBCK significantly affected the pore structure, O content and electrochemical properties of BBCK. The obtained BBCK exhibited a specific surface area of 1394 m 2 g –1 and a pore volume of 0.58 cm 3 g –1 . The O content of BBCK was 25.09%. The formation mechanism of BBCK, which had a hierarchical porous structure via KOH activation, was illustrated systematically. The specific capacitance was 320.05 F g –1 at 0.5 A g –1 in the 6 M KOH electrolyte, and multiplicity performance was 75.22% at 10 A g –1 . The assembled symmetric supercapacitors demonstrate the power density was 250 W kg –1 , and the energy density was 7.36 Wh kg –1 . After 7000 cycles, the capacitance retention rate at 100%.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2017
·
IF 5.651
Gang-Gang Chong,Yu-Cai He,Qiu-Xiang Liu,Xiao-Qin Kou,Xiao-Jun Huang,Jun-Hua Di,Cui-Luan Ma
In this study, dilute alkali salts (0.6% NaClO, 0.067% Na 2 S) pretreatment at 10% sulfidity under the autoclave system at 120 °C for 40 min was used for pretreating bamboo shoot shell (BSS). Furthermore, FT-IR, XRD and SEM were employed to characterize the changes in the cellulose structural characteristics (porosity, morphology, and crystallinity) of the pretreated BSS solid residue. After 72 h, the reducing sugars and glucose from the enzymatic in situ hydrolysis of 50 g/L pretreated BSS in dilute NaClO/Na 2 S media could be obtained at 31.11 and 20.32 g/L, respectively. Finally, the obtained BSS-hydrolysates containing alkalic salt NaClO/Na 2 S resulted in slightly negative effects on the ethanol production. Glucose in BSS-hydrolysates was fermented from 20.0 to 0.17 g/L within 48 h, and an ethanol yield of 0.41 g/g glucose, which represents 80.1% of the theoretical yield, was obtained. This study provided an effective strategy for potential utilization of BSS.
研究领域:
生物化学
·
可再生资源利用
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2023
·
IF 5.9
Qi Gao,Yuyu He,Liangmeng Ni,Hao Ren,Mengfu Su,Shaowen Rong,Zhijia Liu
Fe-N-modified activated carbons (ACs) were prepared from bamboo shoot shells (BSS) by potassium ferrate activation for arsenic adsorption. BSS provided abundant nitrogen and carbon sources for ACs, while potassium ferrate significantly improved the pore volume and specific surface area (SSA), but also loaded iron particles. The highest SSA of AC was 1900 m 2 /g, with the iron content of 4.54–6.52% and nitrogen content of 2.88–3.35%. Based on the arsenic adsorption capacity, the optimized manufacturing process was activation temperature of 800 °C, activation time of 120 min, and activator ratio of 3.5. The optimized AC exhibited excellent arsenic adsorption performance and the maximum adsorption capacity was 9.18 mg/g. The good magnetism of AC was beneficial to recovery and reuse. The adsorption capability retention was still more than 50% after reusing for five times. This work showed that BSS had great potential for commercial development, and also provided a cost-effective production way for arsenic adsorbents.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2024
·Vol. 29
·期 6
·1400
·
IF 4.2
Hao Ren,Qi Gao,Liangmeng Ni,Mengfu Su,Shaowen Rong,Shushu Liu,Yanhang Zhong,Zhijia Liu
To investigate the influence of deashing on fusion characteristics, a combined method of water and acid washing with different sequences (water washing followed by acid washing, and acid washing followed by water washing) was used to treat the biochar of bamboo shoot shells (BBSSs). The results show that deashing decreased the K content of the biochar from 50.3% to 1.08% but increased the Si content from 33.48% to 89.15%. The formation of silicates and aluminosilicates from alkali metal oxides with silicon was an inevitable result of ash phase transformation at the high temperatures used to improve the fusion temperature (>1450 °C). The thermochemical behavior of ash mainly occurs at 1000 °C. The deashing treatment significantly reduced the reaction intensity during the high-temperature process. This significantly increased the thermal stability of the ash. The adjustment of the washing sequence had a slight impact on the chemical compositions, but the differences in ash micromorphology were obvious. Deashing treatments with different washing sequences can significantly improve ash fusion properties effectively and reduce the risk of scaling, slagging, and corrosion. This study provides a new and reasonable strategy for the deashing of biochar to commercially utilize bamboo shoot shell resources.
研究领域:
能源与环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BIORESOURCE TECHNOLOGY
·
2024
·
IF 9.7
Qi Gao,Liangmeng Ni,Shaowen Rong,Shushu Liu,Yanhang Zhong,Zhijia Liu
This work developed a method using bamboo shoot shells as raw material to produce Fe-modified ACs combining self-activation and chemical modification. Adding small amounts (0.5–5 %) of K 2 FeO 4 accelerated the pyrolysis process and CO 2 release, and reduced the activation energy and temperature of self-activation reaction. This increased the reaction rate and activation efficiency, ultimately significantly improving the pore structure of ACs. The addition of 3 % K 2 FeO 4 resulted in a substantial increase in specific surface area and pore volume of AC, from 1340 m 2 /g and 0.72 cm 3 /g to 2184 m 2 /g and 1.34 cm 3 /g, respectively. Additionally, the introduction of K 2 FeO 4 also enabled iron doping on the surface of the ACs. The improvement of pore structure and iron doping further enhanced the adsorption performance of ACs. The adsorption capacities of ACs for arsenate, ibuprofen, and tetracycline were up to 1.64, 1.50, and 2.38 times higher, respectively, than those of ACs prepared through conventional self-activation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2024
·
IF 10.7
Ying Xu,Yi-Hui Liu,Ling-Hua Xu,Shao-Chao Sun,Jia-Long Wen,Tong-Qi Yuan
Concerns about food safety and environmental impact from chemical surfactants have prompted interest in natural lignocellulosic materials as alternatives. In this study, we combined hydrated deep eutectic solvent (DES) pretreatment with ultrasound treatment to prepare lignocellulosic nanofibrils (LCNF) from bamboo shoot shells with appropriate surface properties for stabilizing Pickering emulsions. The pretreatment intensity effectively modulated the surface characteristics of LCNF, achieving desirable wettability through lignin retention and in-situ esterification. The resulting LCNF/curcumin Pickering emulsion (CPE) demonstrated curcumin protection and pH-responsive color changes, while the ensuing CPE/PVA composite film exhibited ultraviolet shielding, mechanical strength, oxygen barrier, and antioxidant properties. Furthermore, the CPE/PVA film showed promise as a real-time indicator for monitoring shrimp freshness, maintaining sensitivity to spoilage even after six months of storage. These findings advance the advancement of green LCNF technologies, providing eco-friendly solutions for valorizing bamboo shoot shells and enhancing the application of LCNF in Pickering emulsions.
研究领域:
食品科学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Biomass Conversion and Biorefinery
·
2020
·Vol. 12
·期 9
·4105-4115
·
IF 2.602
Xiao Zhuqian,Yang Qinqin,Wu Xingyi,He Yuefei
An integrative process for efficient saccharification of hemicellulose and cellulose components from lignocellulosic biomass is of strategic significance for a sustainable society. Raw carbohydrate-lignin matrix demonstrates low reactivity due to existence of crystalline zones and lignin inhibition. To overcome these obstacles, the process synergistically integrating ball milling, heteropolyacid as well as enzymatic hydrolysis, is proposed to unlock the lignin cage for sugars releasing. Among these gathered technologies, ball milling is an alternative pretreatment method for decrystallization of cellulose in bamboo shoot shell (BSS), endowing cellulose I with 71.3% crystallinity index (CrI) to cellulose II with 9.5% CrI accompanying particles decreasing from 283 to 29 μm in D50 size. Under the optimum condition, phosphotungstic acid (HPW) hydrolysis at 150 °C for 2.0 h and subsequently enzymatic hydrolysis at 50 °C for 7.0 h, the results indicate that BSS milled without HPW obtains 763.6 mg/g of monomeric sugars, employing 0.7 g HPW /g substrate while BSS milled with 2.5% HPW can achieve 741.6 mg/g of monomeric sugars but only employing 0.1 g HPW /g substrate in reaction. This integrative strategy provides a good guidance for promoting the conversion of raw lignocellulosic biomass to monosaccharides in high efficiency.
研究领域:
生物化学工程
·
生物技术
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）