Scientists pioneer novel model to turn sunlight into fuel
London, Sep 4 : In a breakthrough move, British scientists have used natural sunlight to convert water into hydrogen and oxygen by mixing biological components and man-made technologies.
The team led by academics at the University of Cambridge, used semi-artificial photosynthesis to explore new ways to produce and store solar energy, a finding that could now be used to revolutionise the systems used for renewable energy production.
Their method also managed to absorb more solar light than natural photosynthesis.
"Natural photosynthesis is not efficient because it has evolved merely to survive so it makes the bare minimum amount of energy needed -- around 1-2 per cent of what it could potentially convert and store," said lead author Katarzyna Soko, doctoral student at the University's St. John's College.
Artificial photosynthesis has been around for decades but it has not yet been successfully used to create renewable energy because it relies on the use of catalysts, which are often expensive and toxic. This means it cannot yet be used to scale up findings to an industrial level.
The new model, detailed in the journal Nature Energy, is the first to successfully use hydrogenase and photosystem II to create semi-artificial photosynthesis driven purely by solar power.
The team not only improved on the amount of energy produced and stored, they managed to reactivate a process in the algae that has been dormant for millennia.
"Hydrogenase is an enzyme present in algae that is capable of reducing protons into hydrogen. During evolution this process has been deactivated because it wasn't necessary for survival but we successfully managed to bypass the inactivity to achieve the reaction we wanted -- splitting water into hydrogen and oxygen," Soko explained.
Soko hopes the findings will enable new innovative model systems for solar energy conversion to be developed.
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Parliament passes Waqf (Amendment) Bill, 2025
New Delhi (PTI): Parliament early Friday passed the contentious Waqf (Amendment) Bill, 2025, after it was approved by the Rajya Sabha.
The Lok Sabha had on Thursday approved the Bill after over a 12-hour debate.
In Rajya Sabha, the Bill got 128 votes in its favour and 95 against after all the amendments moved by the opposition were rejected.
In the lower house, the bill was supported by 288 MPs while 232 voted against it.
Participating in a debate in the Rajya Sabha, Minority Affairs Minister Kiren Rijiju said the Bill was brought with a number of amendments based on suggestions given by various stakeholders.
"The Waqf Board is a statutory body. All government bodies should be secular," the minister said, explaining the inclusion of non-Muslims on the board.
He, however, said the number of non-Muslims has been restricted to only four out of 22.
Rijiju also alleged that the Congress and other opposition parties, and not the BJP, were trying to scare Muslims with the Waqf Bill.
"You (opposition) are pushing Muslims out of the mainstream," he added.
He said for 60 years, the Congress and others ruled the country, but did not do much for Muslims and the community continues to live in poverty.
"Muslims are poor, who is responsible? You (Congress) are. Modi is now leading the government to uplift them," the minister said.
According to the Waqf (Amendment) Bill, Waqf tribunals will be strengthened, a structured selection process will be maintained, and a tenure will be fixed to ensure efficient dispute resolution.
As per the Bill, while Waqf institutions' mandatory contribution to Waqf boards is reduced from 7 per cent to 5 per cent, Waqf institutions earning over Rs 1 lakh will undergo audits by state-sponsored auditors.
A centralised portal will automate Waqf property management, improving efficiency and transparency.
The Bill proposes that practising Muslims (for at least five years) can dedicate their property to the Waqf, restoring pre-2013 rules.
It stipulates that women must receive their inheritance before the Waqf declaration, with special provisions for widows, divorced women and orphans.
The Bill proposes that an officer above the rank of collector investigate government properties claimed as Waqf.
It also proposes that non-Muslim members be included in the central and state Waqf boards for inclusivity.
