Photocatalytic activity of CuInS<sub>2</sub> nanoparticles synthesized via a simple and rapid microwave heating process

Chumha, Nawapong; Pudkon, Watcharapong; Chachvalvutikul, Auttaphon; Luangwanta, Tawanwit; Randorn, Chamnan; Inceesungvorn, Burapat; Ngamjarurojana, Athipong; Kaowphong, Sulawan

doi:10.1088/2053-1591/ab6885

Cited by 47 publications

(12 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since absorbance (A) is directly proportional to the absorbance coefficient (α), the same E g value can be obtained by replacing α with A. CuInS 2 is a direct band gap semiconductor. As shown in Figure 4B , by projecting the linear part of its (A hv ) 2 vs. ( hv ) plot to zero, the E g value of CuInS 2 is obtained to be 1.52 eV, which is close to the reported values in the literature ( Guo et al, 2019 ; Chumha et al, 2020 ). This means that the CuInS 2 nanomaterial could be used as a visible-light-driven photocatalyst.…”

Section: Resultssupporting

confidence: 84%

“…Copper indium sulfide (CuInS 2 ) is a promising I-III-VI 2 ternary chalcopyrite material with a wide range of advantages for photocatalytic and photovoltaic applications (Yang et al, 2021b;Spera et al, 2022;Wang et al, 2022). Its conduction band is made up of In 5s orbitals, and its valence band is made up of S 3p orbitals, resulting in a small band-gap (1.53 eV for the bulk CuInS 2 ) (Chumha et al, 2020;Guo et al, 2021). It has been investigated as a photocatalyst for CO 2 reduction (Xu et al, 2018), organic pollutant degradation (Guo et al, 2019;Kaowphong et al, 2019), and nitrate ion reduction (Yue et al, 2016), etc.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism

Zhu

Chai

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

Despite significant scientific efforts in the field of water treatment, pollution of drinking water by toxic metal ions and synthetic organic compounds is becoming an increasing problem. The photocatalytic capabilities of CuInS2 nanoparticles were examined in this study for both the degradation of chloramphenicol (CAP) and the reduction of Cr(VI). CuInS2 nanoparticles were produced using a straightforward solvothermal approach and subsequently characterized by many analysis techniques. Simultaneous photocatalytic Cr(VI) reduction and CAP oxidation by the CuInS2 nanoparticles under visible-light demonstrated that lower pH and sufficient dissolved oxygen favored both Cr(VI) reduction and CAP oxidation. On the basis of active species quenching experiments, the possible photocatalytic mechanisms for Cr(VI) conversion with synchronous CAP degradation were proposed. Additionally, the CuInS2 retains a high rate of mixed pollutant removal after five runs. This work shows that organic contaminants and heavy metal ions can be treated concurrently by the visible-light-induced photocatalysis of CuInS2.

show abstract

Section: Resultssupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism

Zhu

Chai

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

show abstract

“…QDs have been synthesised by various researchers using this synthetic approach. AgInS 2 [66], CuGaSe 2 [67] CuInS 2 [68]. The small size, biocompatibility and thermal stability of these QDs makes them useful for biological applications [17].…”

Section: Microwave Irradiation Methodsmentioning

confidence: 99%

Synthesis strategies and application of ternary quantum dots — in cancer therapy

Aladesuyi

Oluwafemi

2020

Nano-Structures & Nano-Objects

View full text Add to dashboard Cite

Semiconductor nanoparticles also known as quantum dots (QDs) have continued to receive more attention from researchers due to their unique optical, magnetic and photo physical properties which made them useful as biomedical materials, solar cells, catalyst etc. However, ternary I-III-VI QDs have shown to be a safer alternative to the binary II-VI or IV-VI QDs due to the absent of heavy toxic elements such as Cd and Pb. Cancer management and therapy in Africa has been bedevilled by a lot of challenges such as inaccurate diagnosis and ineffective therapeutic methods. Therefore, the need to develop an appropriate approach for cancer detection and treatment is of paramount importance. Tunable optical properties and absorption in the near infra-red region of the ternary QDs makes them useful as fluorescent probes in cancer detection and treatment. They have the ability to detect specific cancer cells including those that are not easily detected by modern imaging technique. Also, properties such as non-bleaching, stability, water solubility etc. made them a desirable fluorophore when compared to conventional dyes. Most cancer drugs suffer from inherent shortcomings such as limited absorption, insolubility and aggregation. However, these shortcomings can be overcome when these drugs are applied in form of conjugated systems. The use of QDs as conjugates has revolutionise the treatment of cancer in the 21st century. This review provides information about the synthesis strategies, optical properties, hydrophilization and bioconjugation of ternary I-III-VI QDs. Furthermore, we described the various biomedical applications in biosensors, bioimaging, drug delivery and phototherapeutic techniques. Finally, we looked at the challenges and future perspective of these QDs in cancer management.

show abstract

“…CIS belongs to the I–III–VI 2 group having a tetragonal structure and possesses a direct band gap of ∼1.5 eV when in the bulk form . The CIS NPs find applications in numerous fields including photovoltaic devices, , light-emitting diodes, , photocatalysis, , bioimaging, , and so forth. Since NPs possess a larger surface-to-volume ratio than the bulk, they efficiently interact with tissues to provide a large number of active sites, resulting in effective biological activities …”

Section: Introductionmentioning

confidence: 99%

Biocompatible CuInS₂ Nanoparticles as Potential Antimicrobial, Antioxidant, and Cytotoxic Agents

Giri

Chaki

Khimani³

et al. 2021

ACS Omega

View full text Add to dashboard Cite

A simple hydrothermal route is employed to synthesize pure copper indium disulfide (CIS) and CIS nanoparticles (NPs) mediated by various natural plant extracts. The plant extracts used to mediate are Azadirachta indica (neem), Ocimum sanctum (basil), Cocos nucifera (coconut), Aloe vera (aloe), and Curcuma longa (turmeric). The tetragonal unit cell structure of as-synthesized NPs is confirmed by X-ray diffraction. The analysis by energy-dispersive X-rays shows that all the samples are nearstoichiometric. The morphologies of the NPs are confirmed by high-resolution scanning and transmission modes of electron microscopy. The thermal stability of the synthesized NPs is determined by thermogravimetric analysis. The optical energy band gap is determined from the absorption spectra using Tauc's equation. The antimicrobial activity analysis and the estimation of the minimum inhibitory concentration (MIC) value of the samples are performed for Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Enterobacter aerogenes, and Staphylococcus aureus pathogens. It shows that the aloe-mediated CIS NPs possess a broad inhibitory spectrum. The best inhibitory effect is observed against S. aureus, whereas the least effect was exhibited against P. vulgaris. The least MIC value is found for aloe-mediated CIS NPs (0.300 mg/mL) against S. aureus, P. aeruginosa, and E. aerogenes, along with basil-mediated NPs against E. coli. The antioxidant activity study showed that the IC 50 value to inhibit the scavenging activity is maximum for the control (vitamin C) and minimum for pure CIS NPs. The in vivo cytotoxicity study using brine shrimp eggs shows that the pure CIS NPs are more lethal to brine shrimp than the natural extract-mediated CIS NPs. The in vitro cytotoxicity study using the human lung carcinoma cell line (A549) shows that the IC 50 value of turmeric extract-mediated CIS NPs is minimum (15.62 ± 1.58 μg/mL). This observation reveals that turmeric extract-mediated CIS NPs are the most potent in terms of cytotoxicity toward the A549 cell line.

show abstract

Photocatalytic activity of CuInS₂ nanoparticles synthesized via a simple and rapid microwave heating process

Cited by 47 publications

References 51 publications

Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism

Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism

Synthesis strategies and application of ternary quantum dots — in cancer therapy

Biocompatible CuInS₂ Nanoparticles as Potential Antimicrobial, Antioxidant, and Cytotoxic Agents

Contact Info

Product

Resources

About

Photocatalytic activity of CuInS2 nanoparticles synthesized via a simple and rapid microwave heating process

Cited by 47 publications

References 51 publications

Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism

Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism

Synthesis strategies and application of ternary quantum dots — in cancer therapy

Biocompatible CuInS2 Nanoparticles as Potential Antimicrobial, Antioxidant, and Cytotoxic Agents

Contact Info

Product

Resources

About

Photocatalytic activity of CuInS₂ nanoparticles synthesized via a simple and rapid microwave heating process

Biocompatible CuInS₂ Nanoparticles as Potential Antimicrobial, Antioxidant, and Cytotoxic Agents