Search Results - "Ullah, Kefayat"

Enhanced electrochemical properties of (V2O5/GO) composite electrodes for high-performance supercapacitor applications by Shah, Nadar, Nawaz, Haq, Abbas, Syed Mustansar, Khesro, Amir, Ullah, Kefayat

“…Herein, we reported the solution-based techniques to attach vanadium pentoxide (V 2 O 5 ) to graphene oxide (GO) nanosheets. The composite has been checked for…”
Get full text

Fabrication of Novel Heterostructure-Functionalized Graphene-Based TiO2-Sr-Hexaferrite Photocatalyst for Environmental Remediation by Ullah, Kefayat, Oh, Won-Chun

“…Novel visible-light photocatalyst (titanium-dioxide-functionalized graphene/strontium-hexaferrites) TiO2-FG/Sr-hexaferrite nanocomposites were fabricated using…”
Get full text

Synthesis and characterization of novel PbS–graphene/TiO2 composite with enhanced photocatalytic activity by Ullah, Kefayat, Meng, Ze-Da, Ye, Shu, Zhu, Lei, Oh, Won-Chun

“…In this study novel material PbS–graphene/TiO2 composites were prepared by sol–gel method. The “as-prepared” composites were characterized by X-ray diffraction…”
Get full text

Non-enzymatic sensing of glucose with high specificity and sensitivity based on high surface area mesoporous BiZnSbV-G-SiO2 by Fatema, Kamrun Nahar, Zhu, Lei, Cho, Kwang Youn, Jung, Chong-Hun, Ullah, Kefayat, Oh, Won-Chun

“…It is profoundly appealing to build a common enzyme-free sensor for detection of glucose. We effectively synthesized a uniform and mesoporous BiZnSbV-G-SiO 2…”
Get full text

The characteristic study and sonocatalytic performance of CdSe–graphene as catalyst in the degradation of azo dyes in aqueous solution under dark conditions by Ghosh, Trisha, Ullah, Kefayat, Nikam, Vikram, Park, Chong-Yeon, Meng, Ze-Da, Oh, Won-Chun

“…The sonocatalytic degradation of azo dyes; methyl orange (MO) and rhodamine B (RhB) were studied catalyzed by cadmium selenide (CdSe)-graphene in dark…”
Get full text

A Novel Synthesis of Rod-Shape BaNiSn-Graphene Decorated TiO2 Composite as a Ternary Photocatalyst to Improve Visible-Light Driven H2 Evolution with Lactic Acid and TEA by Areerob, Yonrapach, Rafat, Md Nazmodduha, Ullah, Kefayat, Oh, Won-Chun

“…A novel rod-shape BaNiSn-Graphene oxide decorated TiO 2 composite (BaNiSn-GT) has been synthesized using a simple ultrasonic method to enhance the…”
Get full text

High photonic effect of organic dye degradation by CdSe–graphene–TiO2 particles by Ghosh, Trisha, Cho, Kwang-Youn, Ullah, Kefayat, Nikam, Vikram, Park, Chong-Yeon, Meng, Ze-Da, Oh, Won-Chun

“…Photocatalytic activity of CdSe (cadmium selenide) decorated graphene composites coupled with TiO2 (titanium oxide) was investigated with organic dye…”
Get full text

A green and direct synthesis of photosensitized CoS2–graphene/TiO2 hybrid with high photocatalytic performance by Zhu, Lei, Jo, Sun-Bok, Ye, Shu, Ullah, Kefayat, Meng, Ze-Da, Oh, Won-Chun

“…CoS2, CoS2–graphene and CoS2–graphene/TiO2 composite was synthesized by a facile sonochemical and hydrothermal method. X-ray diffraction, scanning electron…”
Get full text

Rhodamine B degradation and reactive oxygen species generation by a ZnSe-graphene/TiO2 sonocatalyst by Zhu, Lei, Jo, Sun-Bok, Ye, Shu, Ullah, Kefayat, Oh, Won-Chun

“…Nanostructured ZnSe-graphene/TiO2 was synthesized by a hydrothermal-assisted approach. ZnSe-graphene/TiO2 exhibited favorable adsorption of rhodamine B, a wide…”
Get full text

Visible light induced catalytic properties of CdSe-graphene nanocomposites and study of its bactericidal effect by Ullah, Kefayat, Kim, Young-Hee, Lee, Byung-Eui, Jo, Sun-Bok, Zhu, Lei, Ye, Shu, Oh, Won-Chun

“…A novel composite, CdSe-graphene, was synthesized using facile hydrothermal method. The structural characteristics studies of the synthesized composites were…”
Get full text

Temporal cloaking via the effect of Compton scattering by Ullah, Aleem, Ahmad, Rashid, Ullah, Kefayat, Ali, Yasir, Ullah, Arif

“…In this work we have studied Temporal Cloaking in a 4 level atomic system in the presence of Compton scattering effect. Between the scattered and un-scattered…”
Get full text

Role of graphene-based nanocomposites as anode material for Lithium-ion batteries by Mand Khan, Bakht, Chun Oh, Won, Nuengmatch, Prawit, Ullah, Kefayat

“…•LIBs were extensively studied.•Graphene combines with other active materials to improve its conductivity and reduces its volume expansion during…”
Get full text

Lived experiences of out-of-school children involved in begging and scavenging: a study of Khyber Pakhtunkhwa, Pakistan by Ullah, Kefayat, Shah, Rahat, Ullah, Ihsan

“…This study was aimed at exploring the lived experiences of out-of-school children engaged in begging and scavenging in Pakistan. There is a dearth of existing…”
Get full text

Fabrication of Novel Heterostructure-Functionalized Graphene-Based TiO 2 -Sr-Hexaferrite Photocatalyst for Environmental Remediation by Ullah, Kefayat, Oh, Won-Chun

“…Novel visible-light photocatalyst (titanium-dioxide-functionalized graphene/strontium-hexaferrites) TiO -FG/Sr-hexaferrite nanocomposites were fabricated using…”
Get full text

Band structure and extra Dirac points in the energy spectrum of ABA-Trilayer graphene superlattice by Ahmad, Tariq, Ullah, Kefayat, Rashid, Amin Ur, Uddin, Salah

“…We have investigated the band structure of ABA trilayer graphene in a one-dimensional superlattice formed by a periodic Kronig-Penny type of potential with…”
Get full text

Fabrication of Novel Heterostructure-Functionalized Graphene-Based TiO[sub.2]-Sr-Hexaferrite Photocatalyst for Environmental Remediation by Ullah, Kefayat, Oh, Won-Chun

“…Novel visible-light photocatalyst (titanium-dioxide-functionalized graphene/strontium-hexaferrites) TiO[sub.2] -FG/Sr-hexaferrite nanocomposites were…”
Get full text

Control of light in a quantized four level graphene atomic system via self and cross-Kerr nonlinearity by Khan, Usman, Amin, Bakht, Ullah, Kefayat, Ullah, Arif

“…We investigate self and cross-Kerr nonlinearity in a four level quantized graphene atomic medium. The absorption, dispersion, transmission and…”
Get full text

Bandgap energy controlling and electrochemical performances of quaternary metal oxide combined graphene-TiO2 nanocomposite and its photocatalytic hydrogen evolution by Ullah, Kefayat, Cho, Kyung-Sang, Wijaya, Karna, Oh, Won-Chun

“…[Display omitted] •Successfully synthesis of a quaternary metal oxide (BiZnSb2O4) combined graphene-TiO2 nanocomposite for high hydrogen production.•New test…”
Get full text

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes by Hussain, Syed Zakir, Ihrar, Muhammad, Hussain, Syed Babar, Oh, Won Chun, Ullah, Kefayat

“…Two-dimensional (2D) graphene and its outstanding properties such as, enormous conductivities, mechanical strength, optical and electrical properties brought…”
Get full text

Emergence of symmetric and asymmetric Dirac points under periodic electric and vector potentials in ABA-trilayer graphene superlattice by Uddin, Salah, Hussain, Altaf, Rashid, Amin Ur, Ullah, Kefayat, Oh, Won-Chun

“…We have theoretically investigated the impact of both periodic electric and vector potentials on the low energy spectrum of ABA-trilayer graphene superlattice…”
Get full text