Preparation of ZnS@In2S3 Core@shell Composite for Enhanced Photocatalytic Degradation of Gaseous o-Dichlorobenzene under Visible Light

Abstract

In this study, novel ZnS@In2S3 core@shell hollow nanospheres were fabricated by a facile refluxing method for the first time, and the formation mechanism of hollow structure with interior architecture was discussed based on ion-exchange Ostwald ripening. As the photocatalytic material for degradation of gaseous o-Dichlorobenzene (o-DCB), the as-synthesized core@shell hollow nanospheres were found to show significantly enhanced catalytic performance for effective separation of photo-generated charges. Moreover, the mechanisms of enhanced activity were elucidated by band alignment and unique configuration. Such photocatalyst would meet the demands for the control of persistent organic pollutant (POPs) in the atmospheric environment.

Highly Efficient Recovery of H2 from Industrial Waste by Sunlight-Driven Photoelectrocatalysis over a ZnS/Bi2S3/ZnO Photoelectrode

“…Figure a shows the Zn 2p core-level XP spectrum, wherein the doublet at binding energies (B.E.s) of 1045.1 and 1021.9 eV is attributed to the Zn 2p 1/2 and Zn 2p 3/2 emission lines, respectively. The splitting of 23.2 eV between the Zn 2p 1/2 and Zn 2p 3/2 features is in line with reports in the literature, indicating Zn in the ZnS/Bi 2 S 3 /ZnO NRs having a divalent state. , The asymmetric line shape of the contribution in the O 1s core-level XPS spectrum is the convolution of two components at B.Es. of 531.6 and 530.2 eV, respectively (Figure b).…”

“…The splitting of 23.2 eV between the Zn 2p 1/2 and Zn 2p 3/2 features is in line with reports in the literature, indicating Zn in the ZnS/Bi 2 S 3 /ZnO NRs having a divalent state. 36,37 The asymmetric line shape of the contribution in the O 1s core-level XPS spectrum is the convolution of two components at B.Es. of 531.6 and 530.2 eV, respectively (Figure 4b).…”

Fabrication of Bi2O3/Bismuth Titanates Modified with Metal–Organic Framework-In2S3/CdIn2S4 Materials for Electrocatalytic H2 Production and Its Photoactivity

“…The In spectrum (Figure d) showed peaks at 445.1 (3d 5/2 ) and 452.6 (3d 3/2 ), which can be assigned to the In 2 S 3 compound with a splitting energy of 7.5 eV. The peak at 442.3 eV found after the peak deconvoluted was ascribed to the Bi 4d 5/2 signal of the Bi–S bonds.…”

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

“…As a typical n-type III-VI group chalcogenide semiconductor, In 2 S 3 with narrow band gap of 2.0-2.3 eV has attracted great interest for various applications recently [35]. Owing to its high photoelectric sensitivity, high photoconductivity, large photoelectric conversion yield, low toxicity, and high absorption coefficient [36][37][38], In 2 S 3 shows superior properties in optical-absorption applications such as photoanodes [35,[39][40][41][42][43][44][45], photocatalysts [36,[46][47][48][49][50][51][52][53], solar cells [54], photocatalytic conversion of carbon dioxide (CO 2 ) reduction [55,56], electrochemical storage cells [57], and photodetectors [37,58,59].…”