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Home > Synthesis and Characterization of Tungstate Based Nanomaterials for Multifarious Applications

Synthesis and Characterization of Tungstate Based Nanomaterials for Multifarious Applications

Thesis Info

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Author

Shad, Naveed Akhter

Program

PhD

Institute

Government College University

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2019

Thesis Completion Status

Completed

Subject

Physics

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11773/1/Naveed%20Akhter%20Shad%20Physics%202019%20gcu%20fslbd%20prr.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727467598

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Group-VIB particularly tungstate based nanostructured materials with novel morphologies demonstrate significant photocatalytic activity as compared to conventional photocatalyst (TiO2), however it exhibits low response in the visible region of light spectrum. In this scenario doping or coupling with other materials of lower band gap results in enhanced surface area, higher electron- hole generation rate, reduced band gap effectively increasing the catalytic and sensing response. This study is aimed to focus on tungstate based nanomaterials namely Bi2WO6, PbWO4, ZnWO4 and CdWO4. In our research, we covered following aspects of the nanomaterials; synthesis, characterization, growth mechanism and applications. The hydrothermal synthesis method was adopted for the preparation of desired nanomaterials and then their structural, morphological, compositional characterization were performed using high tech facilities like TEM, XRD, FESEM, XPS, FTIR, DLS, PL, BET and EDX. The promising reaction mechanism of theas-prepared metal tungstate nanostructures were discussed systematically. Novel morphologies (nano-flakes, nanowires, nanoflowers and nanorods, etc.) were fabricated by optimizing the reaction parameters. The photocatalytic response of the nanostructures were evaluated by degrading the model organic Coomassie brilliant blue (CBB), Congo red (CR) and Methylene Blue (MB) dyes.Electrochemical bio-sensing, the horseradish peroxidase-like (HRP) activity and hydrogen storage features were also evaluated.
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مو لانا حامد الانصاری غازی

آہ! مولوی نور عظیم ندوی
دارالعلوم ندوۃ العلماء کے لائق فرزند اور ہونہار استاد مولوی نور عظیم ندوی چند ماہ کی علالت کے بعد وفات پاگئے، اِناﷲ وَ اِنا اِلَیہ رَاجِعُون۔
وہ دارالعلوم سے فراغت کے بعد مزید تعلیم کے لیے مصر گئے، اردو کی طرح عربی لکھنے اور بولنے کی اچھی مشق تھی اور درس و تدریس کے ساتھ ہی تقریر و تحریر میں بھی اپنا جوہر دکھاتے تھے، جلسوں کی نظامت بڑی خوبی اور سلیقہ سے کرتے تھے، جس سمینار کی کاروائی وہ چلاتے وہ ضرور کامیاب ہوتا۔
پڑھنے لکھنے کا اچھا ذوق تھا اور اسی میں ان کا سارا وقت گزرتا، ندوۃ العلماء سے شائع ہونے والے اردو اور عربی جرائد میں ان کے مضامین وقتاً فوقتاً چھتے تھے۔ ایک زمانہ میں ندائے ملت کے عملاً وہی اڈیٹر تھے، تعلیم اور دوسرے موضوعات پر اس کے خاص نمبر بھی نکالے، مولانا سید ابوالحسن علی ندوی مدظلہ کی سرپرستی میں رابطہ ادب اسلامی کا قیام عمل میں آیا تو اس کے روح رواں مولانا سید محمد رابع ندوی کے یہی دست راست اور رابطہ کے ترجمان کے ایڈیٹر بھی تھے۔ ان کے پاس بعض اشخاص اور اکیڈمیوں کے مسودے تبصرے یا اصلاح کے لیے آتے تھے جن کو بڑے غور و توجہ سے پڑھتے، تحریر کی خوبیوں اور خرابیوں پر ان کی نظر فوراً پڑتی۔ اس معاملہ پر مولانا علی میاں مدظلہ بھی ان پر اعتماد کرتے تھے۔
ان کا وطن ضلع بستی تھا اور وہ مسلکاً اہل حدیث تھے لیکن ندوۃ العلماء میں شیرولشکر کی طرح گھل مل گئے تھے، بڑے خاموش طبع، کم سخن، خلیق اور متواضع تھے، ان کی عمر پچاس (۵۰) کی رہی ہوگی، آئندہ ان سے بڑی توقعات وابستہ تھیں لیکن ابھی اپنی چمک دمک بھی نہیں دکھانے پائے تھے کہ وقت موعود آگیا۔
؂ خوش درخشید ولے...

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