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Dive into the research topics where Su-Il In is active.

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Featured researches published by Su-Il In.


RSC Advances | 2014

Synthesis and characterization of platinum modified TiO2-embedded carbon nanofibers for solar hydrogen generation

Minju Kim; Abdul Razzaq; Young Kwang Kim; Soonhyun Kim; Su-Il In

Photocatalytic water splitting is a significant and promising technology to generate hydrogen, an alternative and clean future fuel. The present work describes the preparation and application of a TiO2 based photocatalyst with an effective architecture focused on the key issues of photocatalyst reusability and photocatalytically stable activity. TiO2 nanoparticles were embedded onto carbon nanofibers (CNF) acting as a support. The electrospinning method was adopted for fabrication of TiO2 embedded carbon nanofibers (TiO2/CNF). The photocatalytic activity of the TiO2/CNF under simulated light was improved by Pt co-catalyst photodeposition. The morphological and structural properties of TiO2/CNF and Pt photodeposited TiO2/CNF (Pt–TiO2/CNF) were investigated by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and powder X-ray diffraction (XRD) techniques. The surface characteristics of these materials were investigated by X-ray photoelectron spectroscopy (XPS), photocurrent and photoluminescence (PL) measurements were also used to elaborate the effect of Pt photodeposition. The reusability and photocatalytic stability of Pt–TiO2/CNF was tested by the generation of approximately the same amounts of photocatalytic hydrogen with the same sample under the same conditions of illumination. The highest production rate of photocatalytic hydrogen generation achieved under simulated light was 3.5 μmol (after 3 hours of illumination with 0.02 g of photocatalyst). These tests show that Pt–TiO2/CNF is a reusable photocatalyt with a promising stable photocatalytic performance for solar energy conversion applications.


RSC Advances | 2016

Hybrid mesoporous Cu2ZnSnS4 (CZTS)–TiO2 photocatalyst for efficient photocatalytic conversion of CO2 into CH4 under solar irradiation

Kidon Kim; Abdul Razzaq; Saurav Sorcar; Yiseul Park; Craig A. Grimes; Su-Il In

A major concern facing global society is the ongoing excessive release of CO2 into the atmosphere where it acts as a heat-trapping greenhouse gas. One approach to helping control atmospheric CO2 concentrations is to use solar energy to convert CO2 into useful products, namely hydrocarbons, by use of specifically designed photocatalytic materials. While numerous photocatalysts have been investigated for use in CO2 reduction, the field remains in its infancy with, overall, relatively poor photoconversion efficiencies and product selectivity. This study reports the synthesis and design of a mesoporous noble metal free p-type Cu2ZnSnS4 (CZTS)/n-type TiO2 heterojunction photocatalyst for broad spectrum light absorption, enhanced charge separation and transfer that, in turn, enhances photocatalytic CO2 conversion. A maximum methane production rate of 118.75 ppm g−1 h−1 is observed, which represents a methane evolution rate approximately 12 times greater than that of pure TiO2. The key factors contributing to the enhanced photocatalytic performance seen in the mesoporous CZTS–TiO2 samples include improved light absorption, high surface area, and effective charge separation.


Rapid Communication in Photoscience | 2013

Photocatalytic conversion of CO2 into hydrocarbon fuels with standard titania (Degussa P25) using newly installed experimental setup

Hye Rim Kim; Abdul Razzaq; Hyo Jung Heo; Su-Il In

【Photoreduction of


International Journal of Nanomedicine | 2015

Carcinogenic activity of PbS quantum dots screened using exosomal biomarkers secreted from HEK293 cells

Jung-Hee Kim; Hyerim Kim; Boram Lee; Eun-Sook Choi; Su-Il In; Eunjoo Kim

CO_2


Scientific Reports | 2017

Enhanced Therapeutic Treatment of Colorectal Cancer Using Surface-Modified Nanoporous Acupuncture Needles

Bo Ram Lee; Hye Rim Kim; Eun Sook Choi; Jung-Hoon Cho; Nam-Jun Kim; Jung Hee Kim; Kyeong Min Lee; Abdul Razzaq; Han Saem Choi; Yun Ju Hwang; Craig A. Grimes; Bong-Hyo Lee; Eun Joo Kim; Su-Il In

into hydrocarbon fuels on the surface of photocatalyst is one of the breakthroughs in the field of photocatalysis. At present various approaches have been investigated with the aim of increasing the


Journal of Acupuncture and Meridian Studies | 2018

The Biocompatibility of Nanoporous Acupuncture Needles

Saurav Sorcar; Craig A. Grimes; Su-Il In

CO_2


Energy and Environmental Science | 2018

High-rate solar-light photoconversion of CO2 to fuel: controllable transformation from C1 to C2 products

Saurav Sorcar; Jamie Thompson; Yunju Hwang; Young Ho Park; Tetsuro Majima; Craig A. Grimes; James R. Durrant; Su-Il In

conversion efficiency. The reactor for photoconversion of


Energy & Fuels | 2011

Facile Solvothermal Method for Fabricating Arrays of Vertically Oriented alpha-Fe2O3 Nanowires and Their Application in Photoelectrochemical Water Oxidation

Dongdong Qin; Chun-Lan Tao; Su-Il In; Zheng-Yin Yang; Thomas E. Mallouk; Ningzhong Bao; Craig A. Grimes

CO_2


Applied Catalysis B-environmental | 2015

Efficient visible light-induced H2 production by Au@CdS/TiO2 nanofibers: Synergistic effect of core–shell structured Au@CdS and densely packed TiO2 nanoparticles

Minju Kim; Young Kwang Kim; Sang Kyoo Lim; Soonhyun Kim; Su-Il In

plays a vital role in experimental setup. In this work an attempt was made to testify a newly designed the photoreactor for conversion of


Carbon | 2016

Facile fabrication of a noble metal-free photocatalyst: TiO2 nanotube arrays covered with reduced graphene oxide

Abdul Razzaq; Craig A. Grimes; Su-Il In

CO_2

Collaboration


Dive into the Su-Il In's collaboration.

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Abdul Razzaq

Daegu Gyeongbuk Institute of Science and Technology

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Craig A. Grimes

Daegu Gyeongbuk Institute of Science and Technology

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Craig A. Grimes

Daegu Gyeongbuk Institute of Science and Technology

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Hye Rim Kim

Daegu Gyeongbuk Institute of Science and Technology

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Saurav Sorcar

Daegu Gyeongbuk Institute of Science and Technology

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Minju Kim

Daegu Gyeongbuk Institute of Science and Technology

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Muhammad Zubair

Daegu Gyeongbuk Institute of Science and Technology

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Soonhyun Kim

Daegu Gyeongbuk Institute of Science and Technology

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Yiseul Park

Pohang University of Science and Technology

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Young Kwang Kim

Daegu Gyeongbuk Institute of Science and Technology

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