In-situ construction of Bi24O31Br10-decorated self-supported BiOBr microspheres for efficient and selective photocatalytic oxidation of aromatic alcohols to aldehydes under blue LED irradiation

Fan, Yajun; Mo, Yuyan; Xin, Zhao; Zuo, Xiaoxi; Nan, Jun; Xiao, Xin

doi:10.1016/j.jece.2022.107382

Cited by 11 publications

(1 citation statement)

References 75 publications

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“…The aromatics-polyester industry chain is a crucial component of the petrochemical industry with significant importance. − In recent years, there has been a global increase in demand for high-purity organic substances, driven by the rapid growth of industries such as food, fine chemicals, pharmaceuticals, and polymer material engineering . Para-xylene (PX) plays a vital role as a raw material in the polyester industry, and it serves as a vital connection between the chemical and refining sectors. − Currently, the primary method employed by the industry to obtain high-purity PX is to separate and purify PX from the mixed xylene raw material liquid .…”

Section: Introductionmentioning

confidence: 99%

Online In Situ Real-Time Experimental Investigation of the Crystallization Characteristics and Kinetic Models during the Nucleation and Growth Process of Para-Xylene Suspension Crystallization

Dong,

Wu,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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The environmentally friendly and efficient preparation of high-purity P-xylene (PX) through suspension crystallization technology holds great significance for further advancement of the petrochemical industry. This review innovatively conducts experimental research on the entire process of PX intermittent suspension crystallization without the addition of crystal seeds in order to further clarify the details of the PX crystallization behavior. Online in situ imaging technology is used for the first time to monitor the real-time changes in the shape and particle size information on PX crystals during the crystallization process of low melting point xylene systems. Then, we derive the nucleation and growth kinetic equations of PX crystallization without adding seeds and further explore its crystallization kinetics and thermodynamic mechanism. The results can be concluded as follows. The PX crystal shape is primarily regular elongated rectangles. Without the addition of seeds, the crystal number and size rapidly increase at the moment of nucleation, the final average particle size is around 425 μm. The solution supersaturation decreased rapidly in the initial stage of crystallization and stabilized after 20 min. As the stirring speed increases, the crystal aggregation decreases, the fragmentation degree increases, and the average particle size decreases monotonically. The crystal purity is highest at 400 rpm. The mechanism by which stirring speed affects the particle size distribution of PX crystals will vary with changes in the crystallization time. The fitted crystallization kinetic equations can accurately reflect the actual nucleation and growth rates. This work is expected to theorize, model, and parametrize the PX suspension crystallization process.

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Section: Introductionmentioning

confidence: 99%

Online In Situ Real-Time Experimental Investigation of the Crystallization Characteristics and Kinetic Models during the Nucleation and Growth Process of Para-Xylene Suspension Crystallization

Dong,

Wu,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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Bismuth‐Based Oxide Photocatalysts for Selective Oxidation Transformations of Organic Compounds

2023

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Selective oxidation of organic compounds is incredibly important in the production of a broad range of important chemicals. As such, these reactions attract a great deal of research attention, particularly where conventional synthesis uses harsh and corrosive reaction conditions. To decrease energy consumption, improve yields and mitigate environmental impacts, heterogeneous photocatalysis has emerged as a green and facile method, where its attractiveness is due to promises of providing low toxicity and low‐cost routes, driven by renewable energy. Among various semiconductor photocatalysts, bismuth‐based oxides are particularly promising candidates due to their high chemical and thermal stability, environmental friendliness, and good visible light responses. This paper provides a comprehensive overview of bismuth‐based oxide photocatalysts as employed in selective organic synthesis, including reaction mechanisms, with a particular focus on the reactive oxygen species involved. In addition, detailed information on the bismuth‐based oxide materials used as photocatalysts is covered. This includes crystal and electronic structures, strategies for improving photocatalytic performance, and a comparison of photocatalytic performances for key organic reactions. Furthermore, prospects and challenges of bismuth‐based oxide photocatalysts in selective organic synthesis are discussed, to aid future developments of efficient photocatalytic materials.

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One-pot solvothermal assembly of CeO2/Ce-BiOBr hollow microsphere heterojunctions for efficient degradation of Congo red driven by visible LED light irradiation

Chen

Lei

et al. 2023

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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In-situ construction of Bi24O31Br10-decorated self-supported BiOBr microspheres for efficient and selective photocatalytic oxidation of aromatic alcohols to aldehydes under blue LED irradiation

Cited by 11 publications

References 75 publications

Online In Situ Real-Time Experimental Investigation of the Crystallization Characteristics and Kinetic Models during the Nucleation and Growth Process of Para-Xylene Suspension Crystallization

Online In Situ Real-Time Experimental Investigation of the Crystallization Characteristics and Kinetic Models during the Nucleation and Growth Process of Para-Xylene Suspension Crystallization

Bismuth‐Based Oxide Photocatalysts for Selective Oxidation Transformations of Organic Compounds

One-pot solvothermal assembly of CeO2/Ce-BiOBr hollow microsphere heterojunctions for efficient degradation of Congo red driven by visible LED light irradiation

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