Article
Chemistry, Physical
Fengming Cao, Yanqing Sun, Ling Zhang, Jie Sun
Summary: The study revealed that PPy-SFB is an efficient adsorbent for the removal of Cr(VI) from water, with adsorption mechanisms involving electrostatic interactions, ion exchange, and surface reduction. Furthermore, the adsorbed Cr(VI) can be recovered through simple incineration.
APPLIED SURFACE SCIENCE
(2022)
Review
Engineering, Environmental
Abul K. Mallik, Md. Abdul Moktadir, Md. Ashiqur Rahman, Md. Shahruzzaman, Mohammed Mizanur Rahman
Summary: The article introduces the hazards of Cr(VI) pollutants and removal methods, focusing on the progress and application of preparing adsorbents by surface-modifying silica, as well as the adsorption mechanisms of various adsorbents.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jinlong Zuo, Wenjing Li, Zhi Xia, Tingting Zhao, Chong Tan, Yuyang Wang, Junsheng Li, Luca Luca Vattuone
Summary: This study used corn straw to prepare biochar and modified it with acid, alkali, and metal salt. The results showed that the biochar modified with FeCl3 had the best adsorption performance for Cr(VI), significantly enhancing the adsorption capacity.
Article
Chemistry, Multidisciplinary
Yogeshwaran Venkatraman, Priya Arunkumar, Nadavala Siva Kumar, Ahmed I. Osman, Muruganandam Muthiah, Ahmed S. Al-Fatesh, Janardhan Reddy Koduru
Summary: This study investigated the efficacy of a rice straw biosorbent for removing chromium and lead heavy-metal ions from wastewater. The study examined the effects of various parameters on metal ion adsorption and found optimal conditions for efficient removal. Thermodynamic and kinetic analyses were conducted to understand the adsorption process.
Article
Engineering, Environmental
Waqas Ahmed, Sajid Mehmood, Muhammad Qaswar, Sehrish Ali, Zulqarnain Haider Khan, Huang Ying, Di-Yun Chen, Avelino Nunez-Delgado
Summary: This study investigated the use of rice straw derived biochar as a precursor for oxidized biochar to adsorb/ remove uranium (VI) from aqueous solutions. The RSBC-Ox showed high removal efficacy with a maximal adsorption capacity of 242.65 mg g(-1), fitting well to kinetic and isotherm models. The research highlights the potential of reusing rice straw as an effective and low-cost adsorbent for U(VI) removal, promoting resource utilization and sustainable materials management.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Isha Medha, Subhash Chandra, Kumar Raja Vanapalli, Biswajit Samal, Jayanta Bhattacharya, Bidus Kanti Das
Summary: The study focused on enhancing the adsorption capacity of Cr(VI) and Zn(II) in soil by preparing iron and APTES biochar composites. The addition of these composites effectively reduced metal toxicity, improved soil quality, and increased the mitotic index in A. cepa cells.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Materials Science, Paper & Wood
Mingyan Yang, Xiaodan Cai, Xinyue Chen, Shuyi Guan, Kaixi Yan, Linyu An, Jianyu Xing
Summary: Wheat straw-based cellulose nanofibrils (CNFs) were used to synthesize aerogel adsorbents for efficient removal of Cr (VI) from contaminated wastewater. Polyethylenimine (PEI) was introduced onto the surface of CNFs by a combined physical and chemical crosslinking strategy to produce CNF@PEI aerogels (CPAs). The CPAs exhibited superior properties and showed outstanding Cr (VI) adsorption performance through electrostatic attractions, chemical reduction and chelation reaction.
Article
Chemistry, Applied
Yiran Sun, Qilin Gui, Andong Zhang, Shuxian Shi, Xiaonong Chen
Summary: This study demonstrates the fabrication of a novel polyvinylamine-grafted polypropylene membrane (PPM-PVAm) for efficient removal of chromium-contaminated water. The membrane exhibits excellent adsorption performance and recycling capability, while the fabrication process is environmentally friendly.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Materials Science, Paper & Wood
Zhiyu Huang, Peng Wu, Yankun Yin, Xiang Zhou, Lu Fu, Luoxin Wang, Shaohua Chen, Xu Tang
Summary: Two novel modified cottons were prepared by introducing amino compounds onto the surface of degreasing cotton for the removal of Cr(VI) ions from aqueous solution. Characterization and studies showed effective adsorption properties, with recovery and reuse achieved through washing with a specific solution.
Article
Chemistry, Physical
Xiangpeng Gao, Cheng Guo, Junjie Hao, Yan Zhang, Mingyang Li, Zhuo Zhao
Summary: In this study, the combination of calcium chloride and iron(III) nitrate with polyethyleneimine grafted sodium alginate successfully produced materials for the efficient removal of Cr (VI). The SPF material showed superior performance in the photocatalytic reduction of Cr (VI) due to its lower charge transfer resistance, facilitating the separation of photogenerated charges.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xin Zhang, Min Li, Yiguo Su, Chunfang Du
Summary: In this study, a novel adsorbent CM/CTAB based on solid waste coal gangue and hexadecyltrimethyl ammonium bromide was successfully synthesized with excellent removal performance and high selectivity towards Cr(VI). The maximum adsorption capacity for Cr(VI) was 55.09 mg/g and the removal efficiency reached 85% within 15 minutes, better than most reported mineral-based adsorbents. The enhanced performance was attributed to the synergistic effect of Cr(VI) adsorption and reduction, fitting well with pseudo-second-order and Langmuir isotherm model. This work provides an efficient adsorbent for Cr(VI) removal and contributes to the comprehensive utilization of solid wastes.
APPLIED CLAY SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Shichao Liu, Zhonglei Xie, Yintao Zhu, Yanmiao Zhu, Yan Jiang, Yujun Wang, Hongjun Gao
Summary: The study investigated the adsorption characteristics of different biochars on Zn in farmland soil and found that biochar from pyrolysis of alkali modified rice straw (KRBC) had the strongest immobilization ability for Zn. This was attributed to its larger specific surface area, richer porosity, and ability to improve soil pH and soil organic carbon effectively. The research provides theoretical and technical support for the remediation of Zn contaminated soil.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Chemical
Na Wang, Qilin Liu, Bo Xie, Xuechun Huang, Dan Xiao
Summary: This paper proposes an environmentally friendly and efficient Cr(VI) adsorbent based on tannic acid coating PVA/PVP/PEI nanofibrous membrane. It can efficiently adsorb Cr(VI) and convert highly toxic Cr(VI) into hypotoxic Cr (III).
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Nanzhengfang Jia, Lingxiang Yun, Jinye Huang, Hui Chen, Chensi Shen, Yuezhong Wen
Summary: The Fenton reaction improves the adsorption ability of chitosan by generating highly reactive HO· and utilizing the formed Fe3+ ions. The modification breaks the hydrogen bonds in chitosan structure, creating additional adsorption sites which efficiently capture and detoxify Cr(VI). The Fenton modified chitosan provides a high concentration of active sites for Cr(VI) capture and detoxification.
WATER ENVIRONMENT RESEARCH
(2021)
Article
Environmental Sciences
Jianhua Qu, Fuxuan Bi, Qi Hu, Peipei Wu, Boyu Ding, Yue Tao, Shouyi Ma, Chunrong Qian, Ying Zhang
Summary: Polyethyleneimine-grafted nitrogen-doping magnetic hydrochar (PEIMW@MNHC) was synthesized and used as an adsorbent for the removal of hexavalent chromium (Cr(VI)) and bisphenol A (BPA) from water. The PEIMW@MNHC exhibited high adsorption capacity for both Cr(VI) and BPA and was tolerant to various coexisting ions. The mechanism of adsorption involved the participation of protonated amino groups, intramolecular heterocyclic N, Fe(II), azo, Fe-NX, and graphitic N structures.
ENVIRONMENTAL POLLUTION
(2023)
Article
Materials Science, Ceramics
Yunjian Luo, Huazhi Gu, Meijie Zhang, Ao Huang, Haifeng Li, Chang Yu, Tingshou Li, Peizhong Yan
CERAMICS INTERNATIONAL
(2020)
Article
Chemistry, Physical
Haifeng Li, Xialin Yi, Yubo Wu, Xiang Wei, Dongdong Deng, Lu Zheng, Wenjun Luo, Xiang Luo, Rongzhou Gong, Meijie Zhang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Weiqing Lin, Fangyuan Zhou, Wenjun Luo, Tianwei Song, Haifeng Li
Article
Chemistry, Physical
Yubo Wu, Haifeng Li, Zelin Zhao, Xialin Yi, Dongdong Deng, Lu Zheng, Xiang Luo, Yang Cai, Wenjun Luo, Meijie Zhang
Summary: Industrial heavy-metal wastewater poses a serious threat to the environment and human health, highlighting the necessity to develop efficient adsorbents. The fabricated CS@PANI composite exhibited excellent adsorption capacity and stability towards Cr(VI), providing a promising approach for recycling solid wastes in the metallurgical industry.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Jin Wei, Yunlong Xiao, Can Yang, Yang Cai, Wenjun Luo, Tiantian Luo, Haifeng Li, Zhihong Yang
Summary: In this study, a novel and easy-separating rare earth adsorbent PAA/PPNWF was successfully synthesized via UV-induced photograft technology, with Ce3+ used as a model for investigating its adsorption performance. The results showed that PAA/PPNWF exhibited high adsorption capacity for Ce3+ and could be easily regenerated with minimal loss of capacity, demonstrating its potential application in efficient recycling of Ce3+ from wastewater.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Chemistry, Physical
Haifeng Li, Lu Zheng, Dongdong Deng, Xialin Yi, Xiaohong Zhang, Xiang Luo, Yubo Wu, Wenjun Luo, Meijie Zhang
Summary: The BaFe12-2x(Mn0.5Co0.5Ti)(x)O19 powders synthesized through solid-state reaction technique showed broadened microwave absorption bandwidth due to multiple magnetic resonances. The substitution of elements led to improved microwave absorption properties, making BaFe11(Mn0.5Co0.5Ti)(0.5)O-19 a desirable candidate for electromagnetic wave absorber applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Lin Weiqing, Luo Wenjun, Zhang Guanghui, Li Haifeng
Summary: In this study, a phlogopite-based geopolymer was successfully prepared and modified to have a nonpolar surface. The solubility of phlogopite powder was found to directly affect the compressive strength of the geopolymer, leading to the proposal of a new evaluation index for mechanical strength. Overall, the experiment demonstrated the potential for improving the performance of geopolymer materials through surface modification and control of raw material properties.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
(2021)
Article
Chemistry, Physical
Yao Wang, Meijie Zhang, Qiulin Xia, Jixiang Zhang, Cangjuan Han, Haifeng Li, Huazhi Gu
Summary: This study investigated the morphology and structure of coating precursor shell on aluminum silicon alloy surface. It found that water vapor, liquid water, and air co-exist with different distributions during the treatment process. The amount of water vapor was shown to affect the formation of stable flake-like boehmite or prism-like bayerite on the surface of Al-Si particles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Geosciences, Multidisciplinary
Ming Zheng, Yang Song, Haifeng Li, Carl Guilmette, Juxing Tang, Qing Zhang, Zhibo Liu, Faqiao Li
Summary: The Bangong-Nujiang suture zone in northern Tibet preserves limited geological records of the Bangong-Nujiang Ocean and the opening time of this ocean has been debated. Studies on the Riasairi trachytes suggest they were formed in a continental rift setting, potentially originating from the southern margin of the Qiangtang terrane.
GEOLOGICAL MAGAZINE
(2022)
Article
Chemistry, Physical
Xiang Luo, Haifeng Li, Dongdong Deng, Lu Zheng, Yubo Wu, Wenjun Luo, Meijie Zhang, Rongzhou Gong
Summary: The introduction of different medium doped and dedoped PANI greatly enhanced the EMW absorption performance of Fe3O4.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Geochemistry & Geophysics
Zongyao Yang, Juxing Tang, Kaijiang Zhang, Xiaoyan Zhao, Haifeng Li, Ying Wang, Faqiao Li, Fengqin Ran, Yiru Huang
Summary: The study of magnesian andesites from the Kongnongla area in central Tibet reveals unique geochemical characteristics, formed approximately 158 million years ago in direct contact with high-Nb basalts.
Article
Chemistry, Applied
Xiang Luo, Haifeng Li, Jihui Sun, Xutao Yan, Yijian Liu, Li Sun, Meijie Zhang
Summary: The carbon source, graphitization degree, and microstructure of pure carbon materials significantly affect their electrical conductivity, impedance matching, and electromagnetic waves absorption properties. A novel nitrogenous porous carbon (NPC) material with excellent electromagnetic waves absorption properties was synthesized by carbonizing polyaniline fiber clusters. The synthesized NPC showed a wide effective absorption bandwidth (EAB) of 5.5 GHz when the filler loading was only 30 wt% and had superior performance compared to many composites with complex structures.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Energy & Fuels
Qiulin Xia, Meijie Zhang, Huazhi Gu, Ao Huang, Mweemba Stephen, Yongming Lu, Xiaohong Zhang, Haifeng Li
Summary: This study simulated the heat transfer behavior during the melting/solidification of composite phase change heat storage particles (CPCHSPs), taking into account the combined effect of heat conduction, convective heat transfer, and thermal radiation. The results showed that the effect of radiation on the thermal storage time exceeded 10%.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Xiang Liao, Long Chen, Yan Xie, Jianjie Tan, Xiang Luo, Haifeng Li
Summary: This study prepared lightweight thermal insulation materials for buildings by using the melt foaming method to solve the problem of reducing waste quantity and increasing utilization of HSTs. The effects of calcination temperature and holding time on melting characteristics were investigated. The amount of foaming agent's impact on bulk density, total porosity, and thermal conductivity were determined, and a thermal conductivity model structure was elucidated. The results showed that porous ceramics with optimal performance were prepared at a calcination temperature of 1200°C for 30-60 minutes, with a melt index of 8 k and 0.52 wt% of added SiC foaming agent. The bulk density, total porosity, and thermal conductivity of the prepared porous ceramics were 0.196 g cm(-3), 93.8%, and 0.086 W m(-1) K-1, respectively, with 60 wt% of added HSTs. The study's findings are of economic significance for the reuse of HSTs at large dosages and with high added value.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Geosciences, Multidisciplinary
Ju-xing Tang, Huan-huan Yang, Yang Song, Li-qiang Wang, Zhi-bo Liu, Bao-long Li, Bin Lin, Bo Peng, Gen-hou Wang, Qing-gao Zeng, Qin Wang, Wei Chen, Nan Wang, Zhi-jun Li, Yu-bin Li, Yan-bo Li, Hai-feng Li, Chuan-yang Lei
Summary: The Tibet Plateau is the most important copper resource reserve and development base in China, with many large and super-large copper deposits discovered and explored. The research team has summarized the geological characteristics of the main copper deposits in Tibet and proposed further prospecting directions, focusing on continental volcanic rocks related to porphyry-epithermal deposits, orogenic gold deposits, hydrothermal Pb-Zn deposits related to nappe structures, skarn Cu (Au) and polymetallic deposits, and the Miocene W-Sn polymetallic deposits.
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
