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Recent advances in titanium carbide MXene-based nanotextures with influential effect of synthesis parameters for solar CO_(2)reduction and H_(2)production:A critical review

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Journal of Energy Chemistry 2023年第1期76卷 295-331,I0008页

作者： Muhammad Tahir Azmat Ali Khan Sehar Tasleem rehan mansoor Areen Sherryna Beenish Tahir Chemical and Petroleum Engineering Department UAE UniversityP.0.Box 15551Al AinUnited Arab Emirates Balochistan University of Information Technology Engineering and Management Sciences(BUITEMS)QuttaBalochistanPakistan Department of Chemical Engineering School of Chemical and Energy EngineeringUniversiti Teknologi Malaysia81310UTM.Johor BahruJohorMalaysia Civil and Environmental Engineering Department UAE UniversityP.o.Box 15551Al AinUnited Arab Emirates

Photocatalytic solar to energy conversion is considered an attractive approach for overcoming energy crises and environmental ***,titanium carbide(Ti_(3)C_(2))MXenes have been recognized as promising cocatalysts based on their metallic conductivity,excessive active reaction sites,and enlarged surface *** current review focuses on the properties and applications of Ti_(3)C_(2)MXenes useful in the field of *** specifically,surface modification of Ti_(3)C_(2)MXenes by varying synthesis parameters to get pure materials and also composites with the role of functional groups towards solar energy conversion applications is highlighted in this *** effect of etching and oxidizing pathways to get an efficient cocatalyst has been discussed in *** the significant effect of parameters,optimum synthesis conditions such as etchant type,concentration,time and type of intercalant in both the Ti_(3)C_(2)synthesis approaches for improved photoactivity are ***,the surface modification of Ti_(3)C_(2)through oxidation for TiO2growth on its surface is deliberated with a detailed discussion on etchant type,concentration,etching time,and environmental *** optimum oxidation condition,including temperature,time,and environment for thermal treatment of Ti_(3)C_(2),were also ***,the review summarizes the conclusion and future perspectives for solar energy conversion applications.

关键词： Solar to energy conversion Ti_(3)C_(2)nanomaterials Termination groups MXene cocatalyst Synthesis parameters

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High-dose-rate intraluminal brachytherapy during preoperative chemoradiation for locally advanced rectal cancers

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World Journal of Gastroenterology 2010年第35期16卷 4436-4442页

作者： Mutahir Ali Tunio mansoor Rafi Altaf Hashmi rehan Mohsin Abdul Qayyum Mujahid Hasan Amjad Sattar Muhammad Mubarak Department of Radiation Oncology Sindh Institute of Urology and Transplantation Department of Surgical Oncology Sindh Institute of Urology and Transplantation Department of Medical Oncology Sindh Institute of Urology and Transplantation Department of Gastroenterology Sindh Institute of Urology and Transplantation Department of Radiology Sindh Institute of Urology and Transplantation Department of Pathology Sindh Institute of Urology and Transplantation

AIM:To determine the feasibility and safety of high dose rate intraluminal brachytherapy(HDR-ILBT) boost during preoperative chemoradiation for rectal ***:Between 2008 and 2009,thirty-six patients with locally advanced rectal cancer(≥ T3 or N+),were treated initially with concurrent capecitabine(825 mg/m2 oral twice daily) and pelvic external beam radiotherapy(EBRT)(45 Gy in 25 fractions),then were randomized to group A;HDR-ILBT group(n = 17) to receive 5.5-7 Gy×2 to gross tumor volume(GTV) and group B;EBRT group(n = 19) to receive 5.4 Gy×3 fractions to GTV with *** patients underwent total mesorectal ***:Grade 3 acute toxicities were registered in 12 patients(70.6%) in group A and in 8(42.1%) in group *** pathologic response of T stage(ypT0) in group A was registered in 10 patients(58.8%) and in group B,3 patients(15.8%) had ypT0(P < 0.0001).Sphincter preservation was reported in 6/9 patients(66.7%) in group A and in 5/10 patients(50%) in group B(P < 0.01).Overall radiological response was 68.15% and 66.04% in Group A and B,*** a median follow up of 18 mo,late grade 1 and 2 sequelae were registered in 3 patients(17.6%) and 4 patients(21.1%) in the groups A and B,***:HDR-ILBT was found to be effective dose escalation technique in preoperative chemoradiation for rectal cancers,with higher response rates,downstaging and with manageable acute toxicities.

关键词： High dose rate Intraluminal brachytherapy boost Locally advanced rectal cancer Preoperative chemoradiation

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