Article
Engineering, Environmental
Xiaoqi Shi, Saier Liu, Chuansong Duanmu, Minjing Shang, Min Qiu, Chong Shen, Yong Yang, Yuanhai Su
Summary: In this study, phenol was successfully synthesized through photooxidation, reaching a high yield of 94% and selectivity over 99% under optimized conditions. The photomicroreactor with blue LEDs as an eco-friendly light source demonstrated significant advantages, while a reaction kinetic model was established to further understand the photooxidation mechanism.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Shijian Zhou, Yuexin Shi, Guangyuan Chen, Weiguo Kong, Hao Hu, Haoran Xie, Changlai Li, Jinping Qin, Zewu Zhang, Luming Peng, Xiaokang Ke, Yan Kong
Summary: This study reports the preparation of fragmentized COFs (TxHy-COFs) photocatalysts and their application in H2O2 synthesis and direct hydroxylation of benzene. The results demonstrate that by varying the feed ratio of monomers, the surface hydroxyl (-OH) modification on fragmentized TxHy-COFs can be achieved, leading to enhanced surface hydrophilicity and improved separation and transfer of photoexcited electrons and holes. The prepared photocatalyst shows high stability and photocatalytic activity, showing great potential for industrial applications in H2O2 production and direct photo-oxidation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Applied
Mengistu Tulu Gonfa, Sheng Shen, Lang Chen, Biao Hu, Wei Zhou, Zhang-Jun Bai, Chak-Tong Au, Shuang-Feng Yin
Summary: This article provides a systematic summary of the recent advances in heterogeneous photocatalytic oxidation of benzene to phenol, including design principles, modification strategies, mechanistic understanding, kinetic factors, reactor design, and photocatalyst deactivation. It suggests that photocatalysts composed of single atoms, layered double hydroxides, and metal clusters are promising candidates. Furthermore, it discusses the importance of catalyst design, reaction mechanism exploration, and the use of state-of-the-art techniques.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Multidisciplinary Sciences
Jia Yu, Changyan Cao, Hongqiang Jin, Weiming Chen, Qikai Shen, Peipei Li, Lirong Zheng, Feng He, Weiguo Song, Yuliang Li
Summary: Cu single atoms anchored on graphdiyne exhibit superior activity and selectivity in direct benzene oxidation to phenol. The uniform Cu-1-C-4 single sites on the graphdiyne support enhance the catalytic performance. This study provides insights into the structure-property relationship of single-atom catalysts and offers guidance for designing efficient catalysts.
NATIONAL SCIENCE REVIEW
(2022)
Article
Engineering, Environmental
Ziru Wang, Hajime Hojo, Hisahiro Einaga
Summary: In this study, a heteropolyacid H3PW12O40 was used as a photocatalyst for the one-pot oxidation of benzene with O-2 to synthesize phenol with high yield and selectivity. The addition of acetonitrile to the reaction solution inhibited the overoxidation of phenol, allowing for efficient phenol formation. Moreover, the H3PW12O40 photocatalyst showed stability and could be reused with minimal decrease in phenol formation rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Wentao Zheng, Guangcai Xu, Yixuan Zhu, Lei Zhou, Xiankun Wu, Weizhong Shi
Summary: A series of phenolic ILs with different cations were synthesized and found to have excellent absorption performance for nitric oxide (NO), with their absorbability largely affected by the cationic bond-donating ability. These ILs may be used as promising absorbents for NO capture, as supported by the research findings.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Environmental Sciences
Yunsong Zheng, Wenjing Xie, Songhu Yuan
Summary: This study demonstrates the use of hydroxylamine to promote the Fe(III)/Fe(II) cycle and accelerate the oxidation reaction of solid Fe(II), leading to increased efficiency in the in situ remediation of contaminants. Hydroxylamine effectively decomposes H2O2 to produce hydroxyl radicals (center dot OH), which enhances the degradation of phenol during soil oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Lanyun Wang, Xinglin Wen, Zhen Liu, Zejian Liu, Yajuan Zhang, Xiaoran Lu, Huajian Zhou, Yongliang Xu
Summary: Utilization of TiO2 and SiO2 photocatalysts under UV light can greatly enhance the removal efficiency of organic sulfur from coal, with significant promotion on thiophene conversion. Compared to traditional methods, photocatalytic desulfurization shows only slight reduction in combustion heat value.
Article
Chemistry, Physical
Danlei Wei, Lianqi Huang, Hanying Liang, Junhua Zou, Wenwen Chen, Can Yang, Yidong Hou, Dandan Zheng, Jinshui Zhang
Summary: The study demonstrates that silylated iron vanadate nanorods can serve as promising photocatalysts for directing hydroxylation of benzene to phenol, by utilizing the unique benefits of covalently bonded organosilane groups to achieve kinetic control of heterogeneous photocatalytic reactions.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Aline M. M. Bessa, Regiane S. Pinheiro, Filipe X. Feitosa, Hosiberto B. de Sant'Ana, Rilvia S. de Santiago-Aguiar
Summary: Low viscosity lactam-based ionic liquids were evaluated as extractor solvents for organic components separation. The results showed that the anion structures of the ILs influenced the solubility of the ternary mixtures, while the cation structures mainly affected the miscibility of cyclohexene and cyclohexane. ILs containing ester anions exhibited good selectivity in the separation of aromatic and aliphatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Weiming Chen, Hongqiang Jin, Feng He, Peixin Cui, Changyan Cao, Weiguo Song
Summary: This study presents a copper single atom catalyst with nitrogen and oxygen dual-coordination, which shows higher catalytic activity and H2O2 utilization efficiency in the direct catalytic oxidation of benzene to phenol. The findings propose an efficient route to enhance catalytic performance by regulating the coordination environments of single atom catalysts and demonstrate a new reaction mechanism in the hydroxylation of benzene to phenol reaction.
Article
Chemistry, Physical
Tigist Ayalew Abay, Wondemagegn H. Wanna, Thiyagarajan Natarajan, Yi-Fang Tsai, Damodar Janmanchi, Jyh-Chiang Jiang, Raed Abu-Reziq, Steve S. -F. Yu
Summary: Direct benzene hydroxylation using hydrogen peroxide can produce phenol under mild conditions. A new iron oxide-carbonaceous nanocatalyst has been successfully developed and shown efficient catalytic activity for the oxidation of benzene to phenol. The study also provides evidence for the crucial role of reactive oxygen species activated by H2O2 in aromatic oxidation.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Pawan Kumar, Anuradha Vijay Jagtap, Sharad Gupta, Chathakudath P. Vinod
Summary: In this study, an efficient La2CuO4 perovskite catalyst was used for one-step oxidation of benzene to phenol under mild conditions, showing high efficiency and selectivity. The adjustment of reaction conditions was crucial for optimizing selectivity of the product.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Qikai Shen, Peipei Li, Weiming Chen, Hongqiang Jin, Jia Yu, Lei Zhu, Zhucheng Yang, Runqing Zhao, Lirong Zheng, Weiguo Song, Changyan Cao
Summary: Ionic liquids (ILs) have the advantages of being low cost, eco-friendly, abundant in heteroatoms, and having excellent solubility and coordination abilities with metal ions, making them suitable precursors for fabricating metal single-atom catalysts (SACs). In this study, various metal single atoms anchored on ultrathin N-doped nanosheets were prepared using ILs and g-C3N4 nanosheets as templates. The Cu-1/NC-1000 catalyst exhibited the highest catalytic activity for benzene oxidation to phenol, with a high benzene conversion rate of 82%, phenol selectivity of 96%, and excellent recyclability.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shengbo Zhang, Meng Jin, Hui Xu, Wenyi Li, Yixing Ye, Tongfei Shi, Hongjian Zhou, Chun Chen, Guozhong Wang, Yunxia Zhang, Yue Lin, Lirong Zheng, Haimin Zhang, Huijun Zhao
Summary: A oxygen-coordinated nickel single-atom catalyst with bifunctional electrocatalytic activities for oxygen reduction reaction and benzene oxidation has been developed. The catalyst shows high conversion of benzene to phenol under suitable conditions.
