Article
Engineering, Environmental
Yavuz Gokce, Savas Yaglikci, Emine Yagmur, Anthony Banford, Zeki Aktas
Summary: The study focused on preparing activated carbon from low rank Rawdon coal using chemical activation, and investigated the effects of demineralisation on the adsorption capacities of the activated carbons. The results showed that activated carbons produced from demineralised and pre-carbonised samples had higher surface areas and better adsorption capacities than those from raw coal.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Rayssa de Medeiros Morais, Gregorio Mateus Santana, Pamela Rebeca Moreno dos Santos, Nathalia Pires Veiga Brito, Raildo Mota de Jesus
Summary: The carbonization and steam activation of coconut endocarp were conducted to obtain Activated Coconut Endocarp Carbon (AC-EC) with high adsorption capacity for methylene blue (MB), chromium (Cr (VI)), and phenol (PHN). Optimal production conditions were achieved at carbonization temperature of 500 °C for 60 min followed by activation at 800 °C for another 60 min. The AC-EC demonstrated a large surface area, high removal efficiency for pollutants, and favorable adsorption kinetics.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Engineering, Environmental
Van Thuan Le, Thi Kieu Ngan Tran, Nguyen Khoa Dang, Van Dat Doan, Vy Anh Tran, Yasser Vasseghian, Tejraj M. Aminabhavi
Summary: The recycling and reuse of biomass wastes, such as spent coffee grounds (SCGs), have gained attention due to their economic and environmental benefits. This study successfully utilized SCGs to prepare Mn3O4/activated carbon nanocomposites (Mn3O4/AC) for the adsorption of methylene blue (MB). The results showed high adsorption efficiency, reusability, and stability of the Mn3O4/AC composite, making it a promising material for wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Wenxuan Tong, Fang Huang, Lihui Chen, Hui Wu, Xiaxing Zhou
Summary: Biomass activated carbon can be enhanced by doping heteroatoms on the surface, leading to the production of supercapacitor cathode materials with excellent electrochemical performance.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Nguyen Van Hung, Bui Thi Minh Nguyet, Nguyen Huu Nghi, Dinh Quang Khieu
Summary: This study demonstrated the synthesis of ZnO/LSAC and its photocatalytic activity under visible light. The highly dispersed ZnO nanoparticles on the LSAC matrix promoted visible-light absorption, showing good photocatalytic activity for dye degradation. The introduction of C to ZnO lattice created an intermediate energy level, leading to visible-light-driven photocatalytic activity.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Saeed Alhawtali, Mohanad El-Harbawi, Abdulrhman S. Al-Awadi, Lahssen El Blidi, Maher M. Alrashed, Chun-Yang Yin
Summary: The ability of novel carbon microspheres (CMs) derived from date palm biomass using a hydrothermal carbonization process and activated using phosphoric acid to remove methylene blue dye was investigated in this study. Three types of palm-based wastes were converted to CMs via the hydrothermal carbonization process and then activated using phosphoric acid. Analysis methods such as SEM, CHNS, FTIR, and BET were used to study the CMs samples before and after activation. The results showed high BET surface areas after activation, with good adsorption capacity for methylene blue dye.
Article
Biochemistry & Molecular Biology
Aigul T. T. Ordabaeva, Zainulla M. M. Muldakhmetov, Arstan M. M. Gazaliev, Sergey V. V. Kim, Zhazira S. S. Shaikenova, Mazhit G. G. Meiramov
Summary: The possibility of obtaining effective coal sorbents from coke fines, a low-liquid product of coke chemical production, has been studied. The coke fines with a size of <= 10 mm were crushed and sieved to obtain a fraction of 2-5 mm. The resulting fraction was activated at 850 degrees C with steam treatment. The activated carbon showed excellent adsorption capacity for phenol and methylene blue, and it also had a porous structure and acid functional groups.
Article
Agricultural Engineering
Le Kim Hoang Pham, Suwadee Kongparakul, Mingyue Ding, Guoqing Guan, Narong Chanlek, Prasert Reubroycharoen, Dai-Viet N. Vo, Nguyen Van Cuong, Chanatip Samart
Summary: Catalytic pyrolysis is a cost-effective technology for producing high-quality biofuels. The development of catalysts plays a crucial role in controlling the reaction pathways and producing specific products. In this study, palm kernel shells were pyrolyzed with a melamine-doped activated-carbon-supported Ni2P catalyst. The catalyst showed great potential for the selective production of phenolic compounds.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Physical
Hongxia Zhao, Haihong Zhong, Yu Jiang, Huiyu Li, Pinggui Tang, Dianqing Li, Yongjun Feng
Summary: This study focuses on the production of porous carbon from shaddock peel for environmental treatments. The porous carbon structure and properties were found to be influenced by carbonization conditions and the use of ZnCl2 as a pore-forming agent. By carefully adjusting the carbonization temperature and the mass ratio between ZnCl2 and shaddock peel, the resulting adsorbent showed high adsorption capacity towards methylene blue. This biomass activated carbon adsorbent has potential to be effective and environmentally friendly for water pollution treatment.
Article
Agricultural Engineering
Shailesh K. Yadav, S. R. Dhakate, Bhanu Pratap Singh
Summary: A novel carbon nanotube-incorporated eucalyptus-derived activated carbon-based adsorbent was synthesized for the removal of dyes from wastewater. The maximum adsorption efficiency for methylene blue and eosin yellow was found to be 49.61 and 49.15 mg/g, respectively, with the pseudo second order model best describing the reaction kinetics involved in the process. This activated carbon adsorbent shows great promise for water decontamination applications.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Nasim Ullah, Zarshad Ali, Saadat Ullah, Amir Sada Khan, Bushra Adalat, Asma Nasrullah, Mustafa Alsaadi, Zubair Ahmad
Summary: A novel composite membrane composed of activated carbon derived from sesban, sodium benzyl dodycyel sulphate treated montmorillonite clay, and alginate was synthesized for the adsorption of methylene-blue dye. The membrane exhibited high efficiency in removing MB dye.
Article
Engineering, Environmental
Lana S. Maia, Andressa I. C. da Silva, Emanuel S. Carneiro, Francisco Maciel Monticelli, Fernanda R. Pinhati, Daniella R. Mulinari
Summary: In this study, activated carbon was synthesized from residues of palm fibers, and its efficacy in removing methylene blue was evaluated. The adsorption process followed the Langmuir isotherm model, indicating that the adsorption occurred through physicochemical interactions. The activated carbon from palm fibers showed characteristics necessary for effective methylene blue removal.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Optics
Yanqun Tong, Bin Jiang, Xin Chen, Xudong Ren, Jiangyi Lu, Liuxin Ding
Summary: This paper proposes a new method of synergistic degradation of methylene blue by laser cavitation and activated carbon fiber. The experimental results show that the degradation rate of methylene blue is influenced by laser energy and initial concentration, and can be increased by about 80% compared to traditional adsorption degradation methods.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Haitham M. El-Bery, Moushira Saleh, Reem A. El-Gendy, Mahmoud R. Saleh, Safinaz M. Thabet
Summary: This study reports the fabrication of activated carbon adsorbents derived from lignocellulosic wastes. Both physical and chemical activation were used to modify the surface texture properties of the adsorbents. The results showed that increasing activation temperature increased the specific surface area, while increasing the amount of chemical activating agent decreased it. The adsorbent demonstrated high efficiency in adsorbing methylene blue and phenol.
SCIENTIFIC REPORTS
(2022)
Article
Biochemistry & Molecular Biology
Noor Ul Alamin, Amir Sada Khan, Asma Nasrullah, Jibran Iqbal, Zahoor Ullah, Israf Ud Din, Nawshad Muhammad, Shahan Zeb Khan
Summary: A cost-effective and sustainable activated carbon based on Calligonum polygonoides biomass was successfully synthesized and used in carbon-alginate beads for the adsorption of methylene blue dye. The fabricated beads demonstrated high adsorption capability and efficiency for the removal of cationic dyes from wastewater, even after recycling.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Guoyu Zhong, Jiangnan Huang, Zhenjie Yao, Baojian Luo, Kaibin Li, Shurui Xu, Xiaobo Fu, Yonghai Cao
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Shurui Xu, Jie Wu, Peng Huang, Chunwen Lao, Hanchao Lai, Yuxiong Wang, Zhenyu Wang, Guoyu Zhong, Xiaobo Fu, Feng Peng
FRONTIERS IN CHEMISTRY
(2020)
Article
Chemistry, Applied
Wenbo Liao, Liuyong Zou, Shaona Zheng, Lili Zhao, Xiangxuan Huang, Lingyun Ye, Guoyu Zhong
Summary: Polyhedral oligomeric silsesquioxane (POSS)-containing fluorinated poly(styrene-acrylate)/SiO2 (POSS-FPSA/SiO2) composite materials were prepared by preemulsification and direct blending method. The SiO2 particles were induced aggregated onto the surface of POSS, leading to a raspberry-like structure. XPS spectra showed two different types of Si-O bonds on the surface of the composite films, with one related to Si-O groups of SiO2 and the other attributed to Si-O-Si groups obtained from sol-gel processes. Additionally, increasing SiO2 content promoted sol-gel reactions and improved thermal stability of the composite films.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Engineering, Chemical
Guoyu Zhong, Shurui Xu, Jie Chao, Xiaobo Fu, Wenbo Liao, Yongjun Xu, Ziwu Liu, Yonghai Cao
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Energy & Fuels
Guoyu Zhong, Mengjie Xu, Shurui Xu, Xiaobo Fu, Wenbo Liao, Yongjun Xu
Summary: This study developed a green approach to prepare iron and nitrogen co-doped porous carbon catalyst with high specific surface area and abundant pores, showing high ORR activity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Liuyong Zou, Guoyu Zhong, Yujun Nie, Zixuan Tan, Wenbo Liao, Xiaobo Fu, Zhanchang Pan
Summary: The nitrogen-doped porous carbon nanosheets prepared by KCl-assisted pyrolysis exhibit controlled carbon material structure and enhanced catalytic performance for the oxygen reduction reaction, with higher half-wave potential and outstanding long-term stability.
Article
Materials Science, Multidisciplinary
Guoyu Zhong, Zhen Meng, Mengjie Xu, Hongmei Xie, Shurui Xu, Xiaobo Fu, Wenbo Liao, Shaona Zheng, Yongjun Xu
Summary: This paper presents a green strategy for synthesizing nitrogen-doped porous carbon using spermacoce latifolia leaf as a precursor. The resulting carbon material exhibits a high specific surface area, abundant mesopores, and doped nitrogen, showing excellent oxygen reduction reaction (ORR) performance and long-term stability.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Guoyu Zhong, Shuyin Hu, Mengjie Xu, Zhen Meng, Jialin Wu, Xiaojun Xu, Shurui Xu, Xiaobo Fu, Wenbo Liao, Shaona Zheng, Yongjun Xu
Summary: Magnetic porous carbons derived from wheat flour exhibit efficient Cr(VI) removal capabilities, with enhanced adsorption and recyclability. The incorporation of calcium chloride enhances the mesoporous structure and crystallization of Fe3O4 in the material, leading to improved adsorption performance. Additionally, density functional theory calculations support the preferential and strong adsorption of Cr(VI) ions onto the Fe3O4 surface.
Article
Chemistry, Multidisciplinary
Shurui Xu, Guoyu Zhong, Linxin Qu, Zihao Liang, Tao Li, Yifei Yuan, Shaona Zheng, Wenbo Liao, Abdul Waqas Anjum, Xiaobo Fu, Jing Xiao
Summary: This study developed a novel catalytic system based on drilled carbon nanotubes (CNTs) assisted by Fe(NO3)(3) that exhibited high activity for alcohol oxidation reactions. There is a direct relationship between defects in the drilled CNTs and their activity, and the edge defects of the CNTs and electron transformation of Fe work synergistically to activate O-2, resulting in unprecedented activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Endocrinology & Metabolism
Zun-Hong Liang, Shi-Shuai Lin, Nan-Fang Pan, Guo-Yu Zhong, Zhi-Yang Qiu, Shao-Jia Kuang, Zhi-Hu Lin, Zhi Zhang, Yun-Chuan Pan
Summary: This study found that exosomal circHIPK3 protected high glucose-treated HUVECs via the miR-20b-5p/Nrf2/VEGFA axis, promoting cell proliferation, migration, and angiogenesis. Therefore, exosomal circHIPK3 may be a potential therapeutic candidate for treating DFU.
Article
Chemistry, Physical
Jingang Song, Hai-Yan Su, Guoyu Zhong, Yang Liu, Xi Huang, Jun Zhou, Rongrong Miao, Chao Li, Wenbo Liao, Xiaobo Fu, Shimin Kang, Zi-Yian Lim, Heyuan Liu, Xiyou Li, Ao You, Feng Peng
Summary: Photocatalytic intermediate water splitting (PIWS) provides a promising route for hydrogen production. In this study, a two-step photosynthesis strategy was employed to prepare a PO protection layer and Ni3Pi2 cocatalyst on the ZCS photocatalyst. The combination of the anti-photocorrosion ability of the PO protection layer and the bi-functional role of Ni3Pi2 led to the excellent PIWS performance with high H2 and H2O2 evolution rates.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Shurui Xu, Baoqiang Lin, Qihang Huang, Wenting Qiu, Wenqian Yuan, Weirui Xu, Xingfeng Xue, Guoyu Zhong, Wenbo Liao, Wenlong Wang, Xiaobo Fu
Summary: Oat-derived N-doped carbon with tunable N content (OA-NCs) was synthesized and found to exhibit unexpectedly high performance in alcohol oxidation to selectively produce aldehyde. The catalytic activity was promoted by the interaction between pyridinic N and Fe3+, and the superoxide radical was identified as the most reactive oxygen species. This study provides insight into the positive effect of N-metal interaction in carbon materials on O2 activation and presents a green pathway for selective aldehyde production.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Wenbo Liao, Weicai Wu, Guoyu Zhong, Lingyun Ye, Shaona Zheng
Summary: A new method for preparing superhydrophilic poly(styrene-co-acrylate)/SiO2 composite materials was developed using conventional emulsion polymerization with colloidal silica. TEM images showed a clear core-shell structure of poly(styrene-co-acrylate) latexes, and the electrostatic repulsion and hydrogen bonds ensured the uniform dispersion of silica nanoparticles. The average diameter of the composite latexes was slightly smaller than that of the polymer, and the formation of hydrogen bonds and gel reaction resulted in enhanced roughness of the composite films. The water contact angle decreased significantly, indicating superhydrophilicity.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Ao You, Jingang Song, Hailang Deng, Canhui Zhou, Jie Chao, Guoyu Zhong, Wenbo Liao
Summary: A phosphate (PO) protection layer and various cocatalysts (Ni2P and MnOx) were synthesized on the twinned Zn0.5Cd0.5S (TZCS) photocatalyst using a two-step photochemical synthesis method. The TZCS/PO/Ni2P-MnOx composite with homojunction + protection layer + cocatalyst structure exhibited a higher initial photocatalytic hydrogen production rate compared to other photocatalysts. The excellent overall water splitting performance of TZCS/PO/Ni2P-MnOx was attributed to the efficient separation and transmission of photogenerated electron-hole pairs by the homojunction structure, as well as their capture by Ni2P and MnOx cocatalysts.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Biao Wang, Qi Jiang, Guangxing Yang, Haofan Wang, Hongjuan Wang, Feng Peng, Hao Yu, Jiangnan Huang, Guoyu Zhong, Yonghai Cao
Summary: In this study, a self-designed instrument equipped with an oxidized mesoporous carbon monolith (o-MCM) as an electro-adsorbent is developed for the uptake of hexavalent chromium ions from wastewater. With the assistance of an electric field, the removal capacity of Cr(VI) ions is greatly enhanced and the carbon adsorbents can be regenerated after multiple recycles. The work lays a foundation for the removal of heavy metal ions from wastewater using an electric field.
