To promote charge transfer and separation for efficient photocatalysis,a direct Z-scheme heterostructure was constructed by coupling polymeric carbon nitride(PCN) and WO_(3).Interestingly,the obtained PCN/WO_(3)Z-sche...To promote charge transfer and separation for efficient photocatalysis,a direct Z-scheme heterostructure was constructed by coupling polymeric carbon nitride(PCN) and WO_(3).Interestingly,the obtained PCN/WO_(3)Z-scheme heterostructure could photocataly tic ally produce hydrogen and value-added chemicals(e.g.,formate and acetate) by reforming of plastic polylactic acid(PLA) in alkaline aqueous condition.By optimizing WO_(3) contents and reaction conditions,the obtained PCN/WO_(3)heterostructure exhibits much increased photocatalytic activity for PLA photoreforming under visible light,with hydrogen evolution rate reaching 402.90 μmol·g~(-1)·h~(-1),which is 3.5 times that of PCN.It is revealed that the Z-scheme charge transfer between PCN and WO_(3) mainly contributes to the promoted charge separation and thus the improved photocatalytic activity.Moreover,with h+and·OH experimentally evidenced as the predominant active species,a possible reaction pathway for the reforming of PLA into value-added chemicals(e.g.,formate and acetate)over PCN/WO_(3) Z-scheme heterostructure is cleared by monitoring the reaction intermediates and radicals.This work paves a carbon neutrality and scalable route toward the synergistical production of hydrogen and value-added chemicals by utilizing and recycling plastic waste.展开更多
Background:In the era of precision medicine,chemotherapy is still considered the cornerstone of treatment for lung cancer patients without gene mutations.How to reduce the toxicity and increase the efficiency of chemo...Background:In the era of precision medicine,chemotherapy is still considered the cornerstone of treatment for lung cancer patients without gene mutations.How to reduce the toxicity and increase the efficiency of chemotherapy is worth exploring.This study aimed to investigate the curative effects and safety of hyperthermia combined with chemotherapy(HCT)for advanced patients with non-small cell lung cancer(NSCLC),especially those with malignant pleural effusion.Methods:We retrospectively evaluated medical records of 93 patients with advanced NSCLC(stage IIIB-IV)from March 2011 to January 2014.The patients were divided into HCT and chemotherapy(CT)groups.The HCT group was treated with gemcitabine and cisplatin(GP)regimen combined with regional radiofrequency deep hyperthermia,while the CT group was treated with GP regimen only.Those with malignant pleural effusion extra underwent thoracentesis and intrapleural injection chemotherapy combined with hyperthermic or not.Clinical treatment results and adverse reactions were compared and analyzed after treatment.SPSS 19.0 software(SPSS Inc.,USA)was used for statistical data processing.P values less than 0.05 were accepted to be statistically significant.Results:Among the 93 patients,HCT group included 48 patients(16 patients with malignant pleural effusion),CT group included 45 patients(10 patients with malignant pleural effusion).There was no significant difference between the two groups in patient characteristics.The overall response rate(ORR)of pleural effusions was much better in HCT group than that in CT group(81.2%vs.40.0%,P=0.046).The patients in HCT group had lower incidence rate of weakness(12.5%us.46.7%,χ^2=13.16,P<0.001)and gastrointestinal(25.0%vs.77.8%,χ^2=25.88,P<0.001)adverse reactions than that in CT group.The objective tumor response and survival showed no significant differences.Conclusions:Hyperthermia combined with chemotherapy might lead to the development of better therapeutic strategy for advanced NSCLC with malignant pleural effusion patients.Also,it could greatly reduce the chemotherapy toxic effects in the incidence of weakness and gastrointestinal adverse reactions in advanced NSCLC patients.展开更多
基金financially supported by the National Natural Science Foundation of China (No.52225606)。
文摘To promote charge transfer and separation for efficient photocatalysis,a direct Z-scheme heterostructure was constructed by coupling polymeric carbon nitride(PCN) and WO_(3).Interestingly,the obtained PCN/WO_(3)Z-scheme heterostructure could photocataly tic ally produce hydrogen and value-added chemicals(e.g.,formate and acetate) by reforming of plastic polylactic acid(PLA) in alkaline aqueous condition.By optimizing WO_(3) contents and reaction conditions,the obtained PCN/WO_(3)heterostructure exhibits much increased photocatalytic activity for PLA photoreforming under visible light,with hydrogen evolution rate reaching 402.90 μmol·g~(-1)·h~(-1),which is 3.5 times that of PCN.It is revealed that the Z-scheme charge transfer between PCN and WO_(3) mainly contributes to the promoted charge separation and thus the improved photocatalytic activity.Moreover,with h+and·OH experimentally evidenced as the predominant active species,a possible reaction pathway for the reforming of PLA into value-added chemicals(e.g.,formate and acetate)over PCN/WO_(3) Z-scheme heterostructure is cleared by monitoring the reaction intermediates and radicals.This work paves a carbon neutrality and scalable route toward the synergistical production of hydrogen and value-added chemicals by utilizing and recycling plastic waste.
基金the Scientific Research Foundation of Shanxi Province Healthy Commission(No.2017068)Shanxi Province Science Foundation for Youths(No.201801D221259).
文摘Background:In the era of precision medicine,chemotherapy is still considered the cornerstone of treatment for lung cancer patients without gene mutations.How to reduce the toxicity and increase the efficiency of chemotherapy is worth exploring.This study aimed to investigate the curative effects and safety of hyperthermia combined with chemotherapy(HCT)for advanced patients with non-small cell lung cancer(NSCLC),especially those with malignant pleural effusion.Methods:We retrospectively evaluated medical records of 93 patients with advanced NSCLC(stage IIIB-IV)from March 2011 to January 2014.The patients were divided into HCT and chemotherapy(CT)groups.The HCT group was treated with gemcitabine and cisplatin(GP)regimen combined with regional radiofrequency deep hyperthermia,while the CT group was treated with GP regimen only.Those with malignant pleural effusion extra underwent thoracentesis and intrapleural injection chemotherapy combined with hyperthermic or not.Clinical treatment results and adverse reactions were compared and analyzed after treatment.SPSS 19.0 software(SPSS Inc.,USA)was used for statistical data processing.P values less than 0.05 were accepted to be statistically significant.Results:Among the 93 patients,HCT group included 48 patients(16 patients with malignant pleural effusion),CT group included 45 patients(10 patients with malignant pleural effusion).There was no significant difference between the two groups in patient characteristics.The overall response rate(ORR)of pleural effusions was much better in HCT group than that in CT group(81.2%vs.40.0%,P=0.046).The patients in HCT group had lower incidence rate of weakness(12.5%us.46.7%,χ^2=13.16,P<0.001)and gastrointestinal(25.0%vs.77.8%,χ^2=25.88,P<0.001)adverse reactions than that in CT group.The objective tumor response and survival showed no significant differences.Conclusions:Hyperthermia combined with chemotherapy might lead to the development of better therapeutic strategy for advanced NSCLC with malignant pleural effusion patients.Also,it could greatly reduce the chemotherapy toxic effects in the incidence of weakness and gastrointestinal adverse reactions in advanced NSCLC patients.
