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Jihui Li
Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, College of Materials and Chemical Engineering, Hainan University, Haikou 570228, China

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Journal article
Published: 21 February 2019 in Bioresource Technology
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A phosphomolybdic acid promoted oxidative pyrolysis was described for preparation of banana pseudostem biochar. The strategy succeeded to introduce oxygen-containing groups onto the biochar surface at low temperature. In addition, pore channels were created, demonstrated by the SEM images of biochar prepared at 200 oC. Adsorption experiments showed that the biochar pyrolyzed at 200 oC exhibited much better adsorption capability than others pyrolyzed at higher temperatures for methylene blue (MB). The adsorption capability of biochar prepared at 200 oC was enhanced from 87.28 to 146.23 mg/g at 45 oC with phosphomolybdic acid modification. The enhancement of adsorption capacity could be ascribed to the increase of surface oxygen-containing functional groups and pore channels. In-situ generated carboxylic groups during adsorption and desorption played an important role in removal of MB. Adsorption of MB was mainly attributed to hydrogen bonding, electrostatic interactions and cation exchanges.

ACS Style

Sen Liu; Jihui Li; Shuang Xu; Mengzhen Wang; Yucang Zhang; Xinghua Xue. A modified method for enhancing adsorption capability of banana pseudostem biochar towards methylene blue at low temperature. Bioresource Technology 2019, 282, 48 -55.

AMA Style

Sen Liu, Jihui Li, Shuang Xu, Mengzhen Wang, Yucang Zhang, Xinghua Xue. A modified method for enhancing adsorption capability of banana pseudostem biochar towards methylene blue at low temperature. Bioresource Technology. 2019; 282 ():48-55.

Chicago/Turabian Style

Sen Liu; Jihui Li; Shuang Xu; Mengzhen Wang; Yucang Zhang; Xinghua Xue. 2019. "A modified method for enhancing adsorption capability of banana pseudostem biochar towards methylene blue at low temperature." Bioresource Technology 282, no. : 48-55.

Journal article
Published: 17 November 2018 in Sustainability
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A low-cost biochar was prepared through slow pyrolysis of banana pseudostem biowaste at different temperatures, and characterized by surface area and porosity analysis, scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). It was shown that the biochar prepared at low pyrolysis temperature was rich in oxygen-containing groups on the surface. Adsorption experiments revealed that the biochar prepared at 300 °C (BB300) was the best adsorbent for Cr(VI) with 125.44 mg/g maximum adsorption capacity at pH 2 and 25 °C. All the adsorption processes were well described by pseudo-second-order and Langmuir models, indicating a monolayer chemiadsorption. Furthermore, it was demonstrated that adsorption of Cr(VI) was mainly attributed to reduction of Cr(VI) to Cr(III) followed by ion exchange and complexation with the biochar.

ACS Style

Shuang Xu; Weiguang Yu; Sen Liu; Congying Xu; Jihui Li; Yucang Zhang. Adsorption of Hexavalent Chromium Using Banana Pseudostem Biochar and Its Mechanism. Sustainability 2018, 10, 4250 .

AMA Style

Shuang Xu, Weiguang Yu, Sen Liu, Congying Xu, Jihui Li, Yucang Zhang. Adsorption of Hexavalent Chromium Using Banana Pseudostem Biochar and Its Mechanism. Sustainability. 2018; 10 (11):4250.

Chicago/Turabian Style

Shuang Xu; Weiguang Yu; Sen Liu; Congying Xu; Jihui Li; Yucang Zhang. 2018. "Adsorption of Hexavalent Chromium Using Banana Pseudostem Biochar and Its Mechanism." Sustainability 10, no. 11: 4250.

Journal article
Published: 01 January 2017 in Chinese Journal of Organic Chemistry
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ACS Style

Jihui Li; Zhengzhang Li; Yucang Zhang; Wenrong Xu; Shuying Xu; 李正章黎吉辉; Li Zhengzhang Li Jihui. Progress on the Synthesis and Applications of Cyanamides. Chinese Journal of Organic Chemistry 2017, 37, 1903 .

AMA Style

Jihui Li, Zhengzhang Li, Yucang Zhang, Wenrong Xu, Shuying Xu, 李正章黎吉辉, Li Zhengzhang Li Jihui. Progress on the Synthesis and Applications of Cyanamides. Chinese Journal of Organic Chemistry. 2017; 37 (8):1903.

Chicago/Turabian Style

Jihui Li; Zhengzhang Li; Yucang Zhang; Wenrong Xu; Shuying Xu; 李正章黎吉辉; Li Zhengzhang Li Jihui. 2017. "Progress on the Synthesis and Applications of Cyanamides." Chinese Journal of Organic Chemistry 37, no. 8: 1903.

Journal article
Published: 01 January 2016 in Chinese Journal of Organic Chemistry
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ACS Style

Shuying Xu; Xiaojia Chen; Jihui Li; Wenrong Xu; Yucang Zhang. Recent Advances in Transition Metal-Catalyzed Synthesis of Guanidines. Chinese Journal of Organic Chemistry 2016, 36, 1985 .

AMA Style

Shuying Xu, Xiaojia Chen, Jihui Li, Wenrong Xu, Yucang Zhang. Recent Advances in Transition Metal-Catalyzed Synthesis of Guanidines. Chinese Journal of Organic Chemistry. 2016; 36 (9):1985.

Chicago/Turabian Style

Shuying Xu; Xiaojia Chen; Jihui Li; Wenrong Xu; Yucang Zhang. 2016. "Recent Advances in Transition Metal-Catalyzed Synthesis of Guanidines." Chinese Journal of Organic Chemistry 36, no. 9: 1985.

Journal article
Published: 11 November 2015 in New Journal of Chemistry
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Various disubstituted cyanamides were constructed through transition-metal free N-arylation of cyanamides by diaryliodonium triflates under aqueous conditions with good yields.

ACS Style

Jihui Li; Xinyi Zheng; Wei Li; Wei Zhou; Wen Zhu; Yucang Zhang. Transition-metal free N-arylation of cyanamides by diaryliodonium triflates in aqueous media. New Journal of Chemistry 2015, 40, 77 -80.

AMA Style

Jihui Li, Xinyi Zheng, Wei Li, Wei Zhou, Wen Zhu, Yucang Zhang. Transition-metal free N-arylation of cyanamides by diaryliodonium triflates in aqueous media. New Journal of Chemistry. 2015; 40 (1):77-80.

Chicago/Turabian Style

Jihui Li; Xinyi Zheng; Wei Li; Wei Zhou; Wen Zhu; Yucang Zhang. 2015. "Transition-metal free N-arylation of cyanamides by diaryliodonium triflates in aqueous media." New Journal of Chemistry 40, no. 1: 77-80.

Journal article
Published: 01 November 2015 in Carbohydrate Polymers
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A cellulose extraction from banana pseudo-stem through the combination of bleach and liquefaction processes was described: holocellulose was isolated by the sodium chlorite method, and then the cellulose was obtained by removing the hemicellulose through chemical liquefaction. The chemical composition, morphology, thermal properties and degree of crystallinity of the celluloses were characterized to discuss their suitability for new bio-based composite materials. It was shown that hemicellulose can be selectively liquefied to get cellulose. The hemicellulose content in cellulose is decreased from 45.69% to 8.38%. Surface morphological studies revealed that there is a reduction in fiber diameter and fiber bundles are divided into individual fibrils, which lead to an increase of the surface area and results in an increased adhesion at the fiber-matrix interface in composites. Thermal analysis results show that the cellulose exhibit enhanced thermal stability over holocellulose. XRD results indicate that the crystallinity is increased from 52.22% to 81.26% by liquefaction.

ACS Style

Wei Li; Yucang Zhang; Jihui Li; Yijun Zhou; Ruisong Li; Wei Zhou. Characterization of cellulose from banana pseudo-stem by heterogeneous liquefaction. Carbohydrate Polymers 2015, 132, 513 -519.

AMA Style

Wei Li, Yucang Zhang, Jihui Li, Yijun Zhou, Ruisong Li, Wei Zhou. Characterization of cellulose from banana pseudo-stem by heterogeneous liquefaction. Carbohydrate Polymers. 2015; 132 ():513-519.

Chicago/Turabian Style

Wei Li; Yucang Zhang; Jihui Li; Yijun Zhou; Ruisong Li; Wei Zhou. 2015. "Characterization of cellulose from banana pseudo-stem by heterogeneous liquefaction." Carbohydrate Polymers 132, no. : 513-519.